diff --git a/src/popover/docs/readme.md b/src/popover/docs/readme.md
index be398d6c4b..03a52f6108 100644
--- a/src/popover/docs/readme.md
+++ b/src/popover/docs/readme.md
@@ -26,6 +26,9 @@ will display:
   `tooltip` directive for supported values.
 - `popover-append-to-body`: Should the tooltip be appended to `$body` instead of
   the parent element?
+- `popover-is-open` <i class="glyphicon glyphicon-eye-open"></i>
+  _(Default: false)_:
+  Whether to show the popover.
 
 The popover directives require the `$position` service.
 
diff --git a/src/popover/test/popover.spec.js b/src/popover/test/popover.spec.js
index bc7f59167e..17e684bfa1 100644
--- a/src/popover/test/popover.spec.js
+++ b/src/popover/test/popover.spec.js
@@ -137,6 +137,37 @@ describe('popover', function() {
       }));
 
     });
+    
+   describe( 'is-open', function() {
+    beforeEach(inject(function ($compile) {
+      scope.isOpen = false;
+      elmBody = angular.element(
+        '<div><span popover="popover text" popover-placement="left" popover-is-open="isOpen">Trigger here</span></div>'
+      );
+      $compile(elmBody)(scope);
+      scope.$digest();
+      elm = elmBody.find('span');
+      elmScope = elm.scope();
+      tooltipScope = elmScope.$$childTail;
+    }));
+    
+    it( 'should show and hide with the controller value', function() {
+      expect(tooltipScope.isOpen).toBe(false);
+      elmScope.isOpen = true;
+      elmScope.$digest();
+      expect(tooltipScope.isOpen).toBe(true);
+      elmScope.isOpen = false;
+      elmScope.$digest();
+      expect(tooltipScope.isOpen).toBe(false);
+    });
+    
+    it( 'should update the controller value', function() {
+      elm.trigger('click');
+      expect(elmScope.isOpen).toBe(true);
+      elm.trigger('click');
+      expect(elmScope.isOpen).toBe(false);
+    });
+  });
 
   });
 
diff --git a/src/tooltip/docs/readme.md b/src/tooltip/docs/readme.md
index 4c60b305ea..b0ae385518 100644
--- a/src/tooltip/docs/readme.md
+++ b/src/tooltip/docs/readme.md
@@ -27,6 +27,9 @@ will display:
 - `tooltip-append-to-body`: Should the tooltip be appended to `$body` instead of
   the parent element?
 - `tooltip-class`: Custom class to be applied to the tooltip.
+- `tooltip-is-open` <i class="glyphicon glyphicon-eye-open"></i>
+  _(Default: false)_:
+  Whether to show the tooltip.
 
 The tooltip directives require the `$position` service.
 
@@ -38,9 +41,11 @@ provided hide triggers:
 - `mouseenter`: `mouseleave`
 - `click`: `click`
 - `focus`: `blur`
+- `none`: ``
 
 For any non-supported value, the trigger will be used to both show and hide the
-tooltip.
+tooltip. Using the 'none' trigger will disable the internal trigger(s), one can
+then use the `tooltip-is-open` attribute exclusively to show and hide the tooltip.
 
 **$tooltipProvider**
 
diff --git a/src/tooltip/test/tooltip.spec.js b/src/tooltip/test/tooltip.spec.js
index 578b95ac6b..46d80688e7 100644
--- a/src/tooltip/test/tooltip.spec.js
+++ b/src/tooltip/test/tooltip.spec.js
@@ -307,6 +307,35 @@ describe('tooltip', function() {
     }));
 
   });
+  
+  describe( 'with an is-open attribute', function() {
+    beforeEach(inject(function ($compile) {
+      scope.isOpen = false;
+      elm = $compile(angular.element(
+        '<span tooltip="tooltip text" tooltip-is-open="isOpen" >Selector Text</span>'
+      ))(scope);
+      elmScope = elm.scope();
+      tooltipScope = elmScope.$$childTail;
+      scope.$digest();
+    }));
+    
+    it( 'should show and hide with the controller value', function() {
+      expect(tooltipScope.isOpen).toBe(false);
+      elmScope.isOpen = true;
+      elmScope.$digest();
+      expect(tooltipScope.isOpen).toBe(true);
+      elmScope.isOpen = false;
+      elmScope.$digest();
+      expect(tooltipScope.isOpen).toBe(false);
+    });
+    
+    it( 'should update the controller value', function() {
+      elm.trigger('mouseenter');
+      expect(elmScope.isOpen).toBe(true);
+      elm.trigger('mouseleave');
+      expect(elmScope.isOpen).toBe(false);
+    });
+  });
 
   describe( 'with a trigger attribute', function() {
     var scope, elmBody, elm, elmScope;
@@ -398,6 +427,20 @@ describe('tooltip', function() {
       elm.trigger('fakeTriggerAttr');
       expect( tooltipScope.isOpen ).toBeFalsy();
     }));
+    
+    it( 'should not show when trigger is set to "none"', inject( function( $compile ) {
+      elmBody = angular.element(
+        '<div><input tooltip="Hello!" tooltip-trigger="none" /></div>'
+      );
+      $compile(elmBody)(scope);
+      scope.$apply();
+      elm = elmBody.find('input');
+      elmScope = elm.scope();
+      tooltipScope = elmScope.$$childTail;
+      expect( tooltipScope.isOpen ).toBeFalsy();
+      elm.trigger('mouseenter');
+      expect( tooltipScope.isOpen ).toBeFalsy();
+    }));
   });
 
   describe( 'with an append-to-body attribute', function() {
diff --git a/src/tooltip/tooltip.js b/src/tooltip/tooltip.js
index fce1018f49..0cf9a14b90 100644
--- a/src/tooltip/tooltip.js
+++ b/src/tooltip/tooltip.js
@@ -22,7 +22,8 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
   var triggerMap = {
     'mouseenter': 'mouseleave',
     'click': 'click',
-    'focus': 'blur'
+    'focus': 'blur',
+    'none': ''
   };
 
   // The options specified to the provider globally.
@@ -65,7 +66,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
    * Returns the actual instance of the $tooltip service.
    * TODO support multiple triggers
    */
-  this.$get = [ '$window', '$compile', '$timeout', '$document', '$position', '$interpolate', '$rootScope', function ( $window, $compile, $timeout, $document, $position, $interpolate, $rootScope ) {
+  this.$get = [ '$window', '$compile', '$timeout', '$document', '$position', '$interpolate', '$rootScope', '$parse', function ( $window, $compile, $timeout, $document, $position, $interpolate, $rootScope, $parse ) {
     return function $tooltip ( type, prefix, defaultTriggerShow, options ) {
       options = angular.extend( {}, defaultOptions, globalOptions, options );
 
@@ -127,6 +128,7 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
             var hasEnableExp = angular.isDefined(attrs[prefix+'Enable']);
             var ttScope = scope.$new(true);
             var repositionScheduled = false;
+            var isOpenExp = angular.isDefined(attrs[prefix + 'IsOpen']) ? $parse(attrs[prefix + 'IsOpen']) : false;
 
             var positionTooltip = function () {
               if (!tooltip) { return; }
@@ -211,7 +213,13 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
 
               // And show the tooltip.
               ttScope.isOpen = true;
-              ttScope.$apply(); // digest required as $apply is not called
+              if (isOpenExp) {
+                isOpenExp.assign(ttScope.origScope, ttScope.isOpen);
+              }
+              
+              if (!$rootScope.$$phase) {
+                ttScope.$apply(); // digest required as $apply is not called
+              }
 
               // Return positioning function as promise callback for correct
               // positioning after draw.
@@ -222,7 +230,10 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
             function hide() {
               // First things first: we don't show it anymore.
               ttScope.isOpen = false;
-
+              if (isOpenExp) {
+                isOpenExp.assign(ttScope.origScope, ttScope.isOpen);
+              }
+              
               //if tooltip is going to be shown after delay, we must cancel this
               $timeout.cancel( popupTimeout );
               popupTimeout = null;
@@ -265,7 +276,9 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
                     repositionScheduled = true;
                     tooltipLinkedScope.$$postDigest(function() {
                       repositionScheduled = false;
-                      positionTooltipAsync();
+                      if (ttScope.isOpen) {
+                        positionTooltipAsync();
+                      }
                     });
                   }
                 });
@@ -333,6 +346,14 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
                 }, 0, false);
               }
             });
+            
+            if (isOpenExp) {
+              scope.$watch(isOpenExp, function(val) {
+                if (val !== ttScope.isOpen) {
+                  toggleTooltipBind();
+                }
+              });
+            }
 
             function prepPopupClass() {
               ttScope.popupClass = attrs[prefix + 'Class'];
@@ -364,14 +385,16 @@ angular.module( 'ui.bootstrap.tooltip', [ 'ui.bootstrap.position', 'ui.bootstrap
 
               triggers = getTriggers( val );
 
-              triggers.show.forEach(function(trigger, idx) {
-                if (trigger === triggers.hide[idx]) {
-                  element.bind(trigger, toggleTooltipBind);
-                } else if (trigger) {
-                  element.bind(trigger, showTooltipBind);
-                  element.bind(triggers.hide[idx], hideTooltipBind);
-                }
-              });
+              if (triggers.show !== 'none') {
+                triggers.show.forEach(function(trigger, idx) {
+                  if (trigger === triggers.hide[idx]) {
+                    element.bind(trigger, toggleTooltipBind);
+                  } else if (trigger) {
+                    element.bind(trigger, showTooltipBind);
+                    element.bind(triggers.hide[idx], hideTooltipBind);
+                  }
+                });
+              }
             }
             prepTriggers();