diff --git a/mongoengine/base.py b/mongoengine/base.py
index 2c5d2ab5..9d0b8231 100644
--- a/mongoengine/base.py
+++ b/mongoengine/base.py
@@ -508,6 +508,17 @@ class BaseDocument(object):
                 return True
         return False
 
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    def __hash__(self):
+        """ For list, dic key  """
+        if self.pk is None:
+            # For new object
+            return super(BaseDocument,self).__hash__()
+        else:
+            return hash(self.pk)
+
 if sys.version_info < (2, 5):
     # Prior to Python 2.5, Exception was an old-style class
     import types
diff --git a/mongoengine/queryset.py b/mongoengine/queryset.py
index f5d5c5fb..5d479009 100644
--- a/mongoengine/queryset.py
+++ b/mongoengine/queryset.py
@@ -538,7 +538,7 @@ class QuerySet(object):
         """
         operators = ['ne', 'gt', 'gte', 'lt', 'lte', 'in', 'nin', 'mod',
                      'all', 'size', 'exists', 'not']
-        geo_operators = ['within_distance', 'within_box', 'near']
+        geo_operators = ['within_distance', 'within_spherical_distance', 'within_box', 'near', 'near_sphere']
         match_operators = ['contains', 'icontains', 'startswith', 
                            'istartswith', 'endswith', 'iendswith', 
                            'exact', 'iexact']
@@ -582,8 +582,12 @@ class QuerySet(object):
                 if op in geo_operators:
                     if op == "within_distance":
                         value = {'$within': {'$center': value}}
+                    elif op == "within_spherical_distance":
+                        value = {'$within': {'$centerSphere': value}}
                     elif op == "near":
                         value = {'$near': value}
+                    elif op == "near_sphere":
+                        value = {'$nearSphere': value}
                     elif op == 'within_box':
                         value = {'$within': {'$box': value}}
                     else:
diff --git a/tests/document.py b/tests/document.py
index 67c21a46..0da7b93e 100644
--- a/tests/document.py
+++ b/tests/document.py
@@ -729,6 +729,54 @@ class DocumentTest(unittest.TestCase):
     def tearDown(self):
         self.Person.drop_collection()
 
+    def test_document_hash(self):
+        """Test document in list, dict, set
+        """
+        class User(Document):
+            pass
+
+        class BlogPost(Document):
+            pass
+        
+        # Clear old datas
+        User.drop_collection()
+        BlogPost.drop_collection()
+
+        u1 = User.objects.create()
+        u2 = User.objects.create()
+        u3 = User.objects.create()
+        u4 = User() # New object
+
+        b1 = BlogPost.objects.create()
+        b2 = BlogPost.objects.create()
+
+        # in List
+        all_user_list = list(User.objects.all())
+
+        self.assertTrue(u1 in all_user_list)
+        self.assertTrue(u2 in all_user_list)
+        self.assertTrue(u3 in all_user_list)
+        self.assertFalse(u4 in all_user_list) # New object
+        self.assertFalse(b1 in all_user_list) # Other object
+        self.assertFalse(b2 in all_user_list) # Other object
+
+        # in Dict
+        all_user_dic = {}
+        for u in User.objects.all():
+            all_user_dic[u] = "OK"
+
+        self.assertEqual(all_user_dic.get(u1, False), "OK" )
+        self.assertEqual(all_user_dic.get(u2, False), "OK" )
+        self.assertEqual(all_user_dic.get(u3, False), "OK" )
+        self.assertEqual(all_user_dic.get(u4, False), False ) # New object
+        self.assertEqual(all_user_dic.get(b1, False), False ) # Other object
+        self.assertEqual(all_user_dic.get(b2, False), False ) # Other object
+
+        # in Set
+        all_user_set = set(User.objects.all())
+        
+        self.assertTrue(u1 in all_user_set )
+        
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/queryset.py b/tests/queryset.py
index 746e8c2e..d4d7fb3a 100644
--- a/tests/queryset.py
+++ b/tests/queryset.py
@@ -1544,7 +1544,7 @@ class QuerySetTest(unittest.TestCase):
         self.assertEqual(events.count(), 3)
         self.assertEqual(list(events), [event1, event3, event2])
 
-        # find events within 5 miles of pitchfork office, chicago
+        # find events within 5 degrees of pitchfork office, chicago
         point_and_distance = [[41.9120459, -87.67892], 5]
         events = Event.objects(location__within_distance=point_and_distance)
         self.assertEqual(events.count(), 2)
@@ -1559,13 +1559,13 @@ class QuerySetTest(unittest.TestCase):
         self.assertEqual(events.count(), 3)
         self.assertEqual(list(events), [event3, event1, event2])
         
-        # find events around san francisco
+        # find events within 10 degrees of san francisco
         point_and_distance = [[37.7566023, -122.415579], 10]
         events = Event.objects(location__within_distance=point_and_distance)
         self.assertEqual(events.count(), 1)
         self.assertEqual(events[0], event2)
         
-        # find events within 1 mile of greenpoint, broolyn, nyc, ny
+        # find events within 1 degree of greenpoint, broolyn, nyc, ny
         point_and_distance = [[40.7237134, -73.9509714], 1]
         events = Event.objects(location__within_distance=point_and_distance)
         self.assertEqual(events.count(), 0)
@@ -1585,6 +1585,58 @@ class QuerySetTest(unittest.TestCase):
         
         Event.drop_collection()
 
+    def test_spherical_geospatial_operators(self):
+        """Ensure that spherical geospatial queries are working
+        """
+        class Point(Document):
+            location = GeoPointField()
+
+        Point.drop_collection()
+
+        # These points are one degree apart, which (according to Google Maps)
+        # is about 110 km apart at this place on the Earth.
+        north_point = Point(location=[-122, 38]) # Near Concord, CA
+        south_point = Point(location=[-122, 37]) # Near Santa Cruz, CA
+        north_point.save()
+        south_point.save()
+
+        earth_radius = 6378.009; # in km (needs to be a float for dividing by)
+
+        # Finds both points because they are within 60 km of the reference
+        # point equidistant between them.
+        points = Point.objects(location__near_sphere=[-122, 37.5])
+        self.assertEqual(points.count(), 2)
+
+        # Same behavior for _within_spherical_distance
+        points = Point.objects(
+            location__within_spherical_distance=[[-122, 37.5], 60/earth_radius]
+        );
+        self.assertEqual(points.count(), 2)
+
+        # Finds both points, but orders the north point first because it's
+        # closer to the reference point to the north.
+        points = Point.objects(location__near_sphere=[-122, 38.5])
+        self.assertEqual(points.count(), 2)
+        self.assertEqual(points[0].id, north_point.id)
+        self.assertEqual(points[1].id, south_point.id)
+
+        # Finds both points, but orders the south point first because it's
+        # closer to the reference point to the south.
+        points = Point.objects(location__near_sphere=[-122, 36.5])
+        self.assertEqual(points.count(), 2)
+        self.assertEqual(points[0].id, south_point.id)
+        self.assertEqual(points[1].id, north_point.id)
+
+        # Finds only one point because only the first point is within 60km of
+        # the reference point to the south.
+        points = Point.objects(
+            location__within_spherical_distance=[[-122, 36.5], 60/earth_radius]
+        );
+        self.assertEqual(points.count(), 1)
+        self.assertEqual(points[0].id, south_point.id)
+
+        Point.drop_collection()
+
     def test_custom_querysets(self):
         """Ensure that custom QuerySet classes may be used.
         """