diff --git a/src/popover/test/popover.spec.js b/src/popover/test/popover.spec.js
index 7e6f2b3970..7eb629f66a 100644
--- a/src/popover/test/popover.spec.js
+++ b/src/popover/test/popover.spec.js
@@ -23,7 +23,7 @@ describe('popover', function() {
   }));
 
   it('should not be open initially', inject(function() {
-    expect( elmScope.tt_isOpen ).toBe( false );
+    expect( elmScope.isOpen ).toBe( false );
 
     // We can only test *that* the popover-popup element wasn't created as the
     // implementation is templated and replaced.
@@ -32,7 +32,7 @@ describe('popover', function() {
 
   it('should open on click', inject(function() {
     elm.trigger( 'click' );
-    expect( elmScope.tt_isOpen ).toBe( true );
+    expect( elmScope.isOpen ).toBe( true );
 
     // We can only test *that* the popover-popup element was created as the
     // implementation is templated and replaced.
@@ -42,7 +42,7 @@ describe('popover', function() {
   it('should close on second click', inject(function() {
     elm.trigger( 'click' );
     elm.trigger( 'click' );
-    expect( elmScope.tt_isOpen ).toBe( false );
+    expect( elmScope.isOpen ).toBe( false );
   }));
 
   it('should not unbind event handlers created by other directives - issue 456', inject( function( $compile ) {
diff --git a/src/tooltip/test/tooltip.spec.js b/src/tooltip/test/tooltip.spec.js
index 5f48353b9b..2459c54e25 100644
--- a/src/tooltip/test/tooltip.spec.js
+++ b/src/tooltip/test/tooltip.spec.js
@@ -23,7 +23,7 @@ describe('tooltip', function() {
   }));
 
   it('should not be open initially', inject(function() {
-    expect( elmScope.tt_isOpen ).toBe( false );
+    expect( elmScope.isOpen ).toBe( false );
 
     // We can only test *that* the tooltip-popup element wasn't created as the
     // implementation is templated and replaced.
@@ -32,7 +32,7 @@ describe('tooltip', function() {
 
   it('should open on mouseenter', inject(function() {
     elm.trigger( 'mouseenter' );
-    expect( elmScope.tt_isOpen ).toBe( true );
+    expect( elmScope.isOpen ).toBe( true );
 
     // We can only test *that* the tooltip-popup element was created as the
     // implementation is templated and replaced.
@@ -42,16 +42,16 @@ describe('tooltip', function() {
   it('should close on mouseleave', inject(function() {
     elm.trigger( 'mouseenter' );
     elm.trigger( 'mouseleave' );
-    expect( elmScope.tt_isOpen ).toBe( false );
+    expect( elmScope.isOpen ).toBe( false );
   }));
 
   it('should not animate on animation set to false', inject(function() {
-    expect( elmScope.tt_animation ).toBe( false );
+    expect( elmScope.animation ).toBe( false );
   }));
 
   it('should have default placement of "top"', inject(function() {
     elm.trigger( 'mouseenter' );
-    expect( elmScope.tt_placement ).toBe( 'top' );
+    expect( elmScope.placement ).toBe( 'top' );
   }));
 
   it('should allow specification of placement', inject( function( $compile ) {
@@ -62,7 +62,7 @@ describe('tooltip', function() {
     elmScope = elm.scope();
 
     elm.trigger( 'mouseenter' );
-    expect( elmScope.tt_placement ).toBe( 'bottom' );
+    expect( elmScope.placement ).toBe( 'bottom' );
   }));
 
   it('should work inside an ngRepeat', inject( function( $compile ) {
@@ -86,7 +86,7 @@ describe('tooltip', function() {
     tt.trigger( 'mouseenter' );
 
     expect( tt.text() ).toBe( scope.items[0].name );
-    expect( tt.scope().tt_content ).toBe( scope.items[0].tooltip );
+    expect( tt.scope().content ).toBe( scope.items[0].tooltip );
 
     tt.trigger( 'mouseleave' );
   }));
@@ -110,8 +110,8 @@ describe('tooltip', function() {
     expect( elm.attr( 'alt' ) ).toBe( scope.alt );
 
     ttScope = angular.element( elmBody.children()[1] ).isolateScope();
-    expect( ttScope.placement ).toBe( 'top' );
-    expect( ttScope.content ).toBe( scope.tooltipMsg );
+    expect( elmScope.placement ).toBe( 'top' );
+    expect( elmScope.content ).toBe( scope.tooltipMsg );
 
     elm.trigger( 'mouseleave' );
 
@@ -119,8 +119,8 @@ describe('tooltip', function() {
     elm.trigger( 'mouseenter' );
 
     ttScope = angular.element( elmBody.children()[1] ).isolateScope();
-    expect( ttScope.placement ).toBe( 'top' );
-    expect( ttScope.content ).toBe( scope.tooltipMsg );
+    expect( elmScope.placement ).toBe( 'top' );
+    expect( elmScope.content ).toBe( scope.tooltipMsg );
   }));
 
   it('should not show tooltips if there is nothing to show - issue #129', inject(function ($compile) {
@@ -136,7 +136,7 @@ describe('tooltip', function() {
 
   it( 'should close the tooltip when its trigger element is destroyed', inject( function() {
     elm.trigger( 'mouseenter' );
-    expect( elmScope.tt_isOpen ).toBe( true );
+    expect( elmScope.isOpen ).toBe( true );
 
     elm.remove();
     elmScope.$destroy();
@@ -177,7 +177,7 @@ describe('tooltip', function() {
     it('should not open ', inject(function () {
 
       elm.trigger('mouseenter');
-      expect(elmScope.tt_isOpen).toBeFalsy();
+      expect(elmScope.isOpen).toBeFalsy();
       expect(elmBody.children().length).toBe(1);
 
     }));
@@ -187,7 +187,7 @@ describe('tooltip', function() {
       scope.enable = true;
       scope.$digest();
       elm.trigger('mouseenter');
-      expect(elmScope.tt_isOpen).toBeTruthy();
+      expect(elmScope.isOpen).toBeTruthy();
       expect(elmBody.children().length).toBe(2);
 
     }));
@@ -207,27 +207,27 @@ describe('tooltip', function() {
     it('should open after timeout', inject(function ($timeout) {
 
       elm.trigger('mouseenter');
-      expect(elmScope.tt_isOpen).toBe(false);
+      expect(elmScope.isOpen).toBe(false);
 
       $timeout.flush();
-      expect(elmScope.tt_isOpen).toBe(true);
+      expect(elmScope.isOpen).toBe(true);
 
     }));
 
     it('should not open if mouseleave before timeout', inject(function ($timeout) {
       elm.trigger('mouseenter');
-      expect(elmScope.tt_isOpen).toBe(false);
+      expect(elmScope.isOpen).toBe(false);
 
       elm.trigger('mouseleave');
       $timeout.flush();
-      expect(elmScope.tt_isOpen).toBe(false);
+      expect(elmScope.isOpen).toBe(false);
     }));
 
     it('should use default popup delay if specified delay is not a number', function(){
       scope.delay='text1000';
       scope.$digest();
       elm.trigger('mouseenter');
-      expect(elmScope.tt_isOpen).toBe(true);
+      expect(elmScope.isOpen).toBe(true);
     });
 
   });
@@ -248,11 +248,11 @@ describe('tooltip', function() {
       elm = elmBody.find('input');
       elmScope = elm.scope();
 
-      expect( elmScope.tt_isOpen ).toBeFalsy();
+      expect( elmScope.isOpen ).toBeFalsy();
       elm.trigger('focus');
-      expect( elmScope.tt_isOpen ).toBeTruthy();
+      expect( elmScope.isOpen ).toBeTruthy();
       elm.trigger('blur');
-      expect( elmScope.tt_isOpen ).toBeFalsy();
+      expect( elmScope.isOpen ).toBeFalsy();
     }));
 
     it( 'should use it as both the show and hide triggers for unmapped triggers', inject( function( $compile ) {
@@ -264,11 +264,11 @@ describe('tooltip', function() {
       elm = elmBody.find('input');
       elmScope = elm.scope();
 
-      expect( elmScope.tt_isOpen ).toBeFalsy();
+      expect( elmScope.isOpen ).toBeFalsy();
       elm.trigger('fakeTriggerAttr');
-      expect( elmScope.tt_isOpen ).toBeTruthy();
+      expect( elmScope.isOpen ).toBeTruthy();
       elm.trigger('fakeTriggerAttr');
-      expect( elmScope.tt_isOpen ).toBeFalsy();
+      expect( elmScope.isOpen ).toBeFalsy();
     }));
 
     it('should not share triggers among different element instances - issue 692', inject( function ($compile) {
@@ -291,10 +291,10 @@ describe('tooltip', function() {
       scope.$apply('test = false');
 
       elm2.trigger('mouseenter');
-      expect( elmScope2.tt_isOpen ).toBeFalsy();
+      expect( elmScope2.isOpen ).toBeFalsy();
 
       elm2.click();
-      expect( elmScope2.tt_isOpen ).toBeTruthy();
+      expect( elmScope2.isOpen ).toBeTruthy();
     }));
   });
 
@@ -319,7 +319,7 @@ describe('tooltip', function() {
       var bodyLength = $body.children().length;
       elm.trigger( 'mouseenter' );
 
-      expect( elmScope.tt_isOpen ).toBe( true );
+      expect( elmScope.isOpen ).toBe( true );
       expect( elmBody.children().length ).toBe( 1 );
       expect( $body.children().length ).toEqual( bodyLength + 1 );
     }));
@@ -420,16 +420,16 @@ describe( 'tooltipHtmlUnsafe', function() {
   }));
 
   it( 'should show on mouseenter and hide on mouseleave', inject( function () {
-    expect( elmScope.tt_isOpen ).toBe( false );
+    expect( elmScope.isOpen ).toBe( false );
 
     elm.trigger( 'mouseenter' );
-    expect( elmScope.tt_isOpen ).toBe( true );
+    expect( elmScope.isOpen ).toBe( true );
     expect( elmBody.children().length ).toBe( 2 );
 
-    expect( elmScope.tt_content ).toEqual( scope.html );
+    expect( elmScope.content ).toEqual( scope.html );
 
     elm.trigger( 'mouseleave' );
-    expect( elmScope.tt_isOpen ).toBe( false );
+    expect( elmScope.isOpen ).toBe( false );
     expect( elmBody.children().length ).toBe( 1 );
   }));
 });
@@ -463,10 +463,10 @@ describe( '$tooltipProvider', function() {
     it('should open after timeout', inject(function($timeout) {
 
       elm.trigger( 'mouseenter' );
-      expect( elmScope.tt_isOpen ).toBe( false );
+      expect( elmScope.isOpen ).toBe( false );
 
       $timeout.flush();
-      expect( elmScope.tt_isOpen ).toBe( true );
+      expect( elmScope.isOpen ).toBe( true );
 
     }));
 
@@ -496,7 +496,7 @@ describe( '$tooltipProvider', function() {
       var bodyLength = $body.children().length;
       elm.trigger( 'mouseenter' );
 
-      expect( elmScope.tt_isOpen ).toBe( true );
+      expect( elmScope.isOpen ).toBe( true );
       expect( elmBody.children().length ).toBe( 1 );
       expect( $body.children().length ).toEqual( bodyLength + 1 );
     }));
@@ -514,11 +514,11 @@ describe( '$tooltipProvider', function() {
       elmScope = elm.scope();
 
       elm.trigger( 'mouseenter' );
-      expect( elmScope.tt_isOpen ).toBe( true );
+      expect( elmScope.isOpen ).toBe( true );
 
       scope.$broadcast('$locationChangeSuccess');
       scope.$digest();
-      expect( elmScope.tt_isOpen ).toBe( false );
+      expect( elmScope.isOpen ).toBe( false );
     }));
   });
 
@@ -542,11 +542,11 @@ describe( '$tooltipProvider', function() {
         elm = elmBody.find('input');
         elmScope = elm.scope();
 
-        expect( elmScope.tt_isOpen ).toBeFalsy();
+        expect( elmScope.isOpen ).toBeFalsy();
         elm.trigger('focus');
-        expect( elmScope.tt_isOpen ).toBeTruthy();
+        expect( elmScope.isOpen ).toBeTruthy();
         elm.trigger('blur');
-        expect( elmScope.tt_isOpen ).toBeFalsy();
+        expect( elmScope.isOpen ).toBeFalsy();
       }));
 
       it( 'should override the show and hide triggers if there is an attribute', inject( function ( $rootScope, $compile ) {
@@ -560,11 +560,11 @@ describe( '$tooltipProvider', function() {
         elm = elmBody.find('input');
         elmScope = elm.scope();
 
-        expect( elmScope.tt_isOpen ).toBeFalsy();
+        expect( elmScope.isOpen ).toBeFalsy();
         elm.trigger('mouseenter');
-        expect( elmScope.tt_isOpen ).toBeTruthy();
+        expect( elmScope.isOpen ).toBeTruthy();
         elm.trigger('mouseleave');
-        expect( elmScope.tt_isOpen ).toBeFalsy();
+        expect( elmScope.isOpen ).toBeFalsy();
       }));
     });
 
@@ -588,11 +588,11 @@ describe( '$tooltipProvider', function() {
         elm = elmBody.find('input');
         elmScope = elm.scope();
 
-        expect( elmScope.tt_isOpen ).toBeFalsy();
+        expect( elmScope.isOpen ).toBeFalsy();
         elm.trigger('customOpenTrigger');
-        expect( elmScope.tt_isOpen ).toBeTruthy();
+        expect( elmScope.isOpen ).toBeTruthy();
         elm.trigger('customCloseTrigger');
-        expect( elmScope.tt_isOpen ).toBeFalsy();
+        expect( elmScope.isOpen ).toBeFalsy();
       }));
     });
 
@@ -615,11 +615,11 @@ describe( '$tooltipProvider', function() {
         elm = elmBody.find('span');
         elmScope = elm.scope();
 
-        expect( elmScope.tt_isOpen ).toBeFalsy();
+        expect( elmScope.isOpen ).toBeFalsy();
         elm.trigger('fakeTrigger');
-        expect( elmScope.tt_isOpen ).toBeTruthy();
+        expect( elmScope.isOpen ).toBeTruthy();
         elm.trigger('fakeTrigger');
-        expect( elmScope.tt_isOpen ).toBeFalsy();
+        expect( elmScope.isOpen ).toBeFalsy();
       }));
     });
   });
diff --git a/src/tooltip/tooltip.js b/src/tooltip/tooltip.js
index da1b356799..01d4c22692 100644
--- a/src/tooltip/tooltip.js
+++ b/src/tooltip/tooltip.js
@@ -97,11 +97,11 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
       var endSym = $interpolate.endSymbol();
       var template =
         '<div '+ directiveName +'-popup '+
-          'title="'+startSym+'tt_title'+endSym+'" '+
-          'content="'+startSym+'tt_content'+endSym+'" '+
-          'placement="'+startSym+'tt_placement'+endSym+'" '+
-          'animation="tt_animation" '+
-          'is-open="tt_isOpen"'+
+          'title="'+startSym+'title'+endSym+'" '+
+          'content="'+startSym+'content'+endSym+'" '+
+          'placement="'+startSym+'placement'+endSym+'" '+
+          'animation="animation" '+
+          'is-open="isOpen"'+
           '>'+
         '</div>';
 
@@ -121,7 +121,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
 
             var positionTooltip = function () {
 
-              var ttPosition = $position.positionElements(element, tooltip, scope.tt_placement, appendToBody);
+              var ttPosition = $position.positionElements(element, tooltip, scope.placement, appendToBody);
               ttPosition.top += 'px';
               ttPosition.left += 'px';
 
@@ -131,10 +131,10 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
 
             // By default, the tooltip is not open.
             // TODO add ability to start tooltip opened
-            scope.tt_isOpen = false;
+            scope.isOpen = false;
 
             function toggleTooltipBind () {
-              if ( ! scope.tt_isOpen ) {
+              if ( ! scope.isOpen ) {
                 showTooltipBind();
               } else {
                 hideTooltipBind();
@@ -146,8 +146,8 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
               if(hasEnableExp && !scope.$eval(attrs[prefix+'Enable'])) {
                 return;
               }
-              if ( scope.tt_popupDelay ) {
-                popupTimeout = $timeout( show, scope.tt_popupDelay, false );
+              if ( scope.popupDelay ) {
+                popupTimeout = $timeout( show, scope.popupDelay, false );
                 popupTimeout.then(function(reposition){reposition();});
               } else {
                 show()();
@@ -165,7 +165,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
 
 
               // Don't show empty tooltips.
-              if ( ! scope.tt_content ) {
+              if ( ! scope.content ) {
                 return angular.noop;
               }
 
@@ -191,7 +191,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
               positionTooltip();
 
               // And show the tooltip.
-              scope.tt_isOpen = true;
+              scope.isOpen = true;
               scope.$digest(); // digest required as $apply is not called
 
               // Return positioning function as promise callback for correct
@@ -202,7 +202,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
             // Hide the tooltip popup element.
             function hide() {
               // First things first: we don't show it anymore.
-              scope.tt_isOpen = false;
+              scope.isOpen = false;
 
               //if tooltip is going to be shown after delay, we must cancel this
               $timeout.cancel( popupTimeout );
@@ -210,7 +210,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
               // And now we remove it from the DOM. However, if we have animation, we 
               // need to wait for it to expire beforehand.
               // FIXME: this is a placeholder for a port of the transitions library.
-              if ( scope.tt_animation ) {
+              if ( scope.animation ) {
                 transitionTimeout = $timeout(removeTooltip, 500);
               } else {
                 removeTooltip();
@@ -239,24 +239,24 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
              * Observe the relevant attributes.
              */
             attrs.$observe( type, function ( val ) {
-              scope.tt_content = val;
+              scope.content = val;
 
-              if (!val && scope.tt_isOpen ) {
+              if (!val && scope.isOpen ) {
                 hide();
               }
             });
 
             attrs.$observe( prefix+'Title', function ( val ) {
-              scope.tt_title = val;
+              scope.title = val;
             });
 
             attrs.$observe( prefix+'Placement', function ( val ) {
-              scope.tt_placement = angular.isDefined( val ) ? val : options.placement;
+              scope.placement = angular.isDefined( val ) ? val : options.placement;
             });
 
             attrs.$observe( prefix+'PopupDelay', function ( val ) {
               var delay = parseInt( val, 10 );
-              scope.tt_popupDelay = ! isNaN(delay) ? delay : options.popupDelay;
+              scope.popupDelay = ! isNaN(delay) ? delay : options.popupDelay;
             });
 
             var unregisterTriggers = function () {
@@ -278,7 +278,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
             });
 
             var animation = scope.$eval(attrs[prefix + 'Animation']);
-            scope.tt_animation = angular.isDefined(animation) ? !!animation : options.animation;
+            scope.animation = angular.isDefined(animation) ? !!animation : options.animation;
 
             attrs.$observe( prefix+'AppendToBody', function ( val ) {
               appendToBody = angular.isDefined( val ) ? $parse( val )( scope ) : appendToBody;
@@ -289,7 +289,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
             // by the change.
             if ( appendToBody ) {
               scope.$on('$locationChangeSuccess', function closeTooltipOnLocationChangeSuccess () {
-              if ( scope.tt_isOpen ) {
+              if ( scope.isOpen ) {
                 hide();
               }
             });