diff --git a/axios/AxiosEngine.cd b/axios/AxiosEngine.cd
index 5364a5b..c3005ff 100644
--- a/axios/AxiosEngine.cd
+++ b/axios/AxiosEngine.cd
@@ -45,7 +45,7 @@
   <Class Name="Axios.Engine.AxiosGameScreen">
     <Position X="3.75" Y="0.5" Width="1.5" />
     <TypeIdentifier>
-      <HashCode>AARoEQCHAAACAggBACAAAgAICAAAAAAAIAAAAIIQAAQ=</HashCode>
+      <HashCode>AARoAQCHAgBCAghBACAAAgAICAAAAAABIAAAAIAQAAA=</HashCode>
       <FileName>Engine\AxiosGameScreen.cs</FileName>
     </TypeIdentifier>
   </Class>
@@ -56,17 +56,17 @@
       <FileName>Engine\AxiosTimer.cs</FileName>
     </TypeIdentifier>
   </Class>
-  <Class Name="Axios.Engine.Extenions.AxiosExtensions_String">
+  <Class Name="Axios.Engine.Extensions.AxiosExtensions_String">
     <Position X="14.5" Y="4.5" Width="2" />
     <TypeIdentifier>
       <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAAAA=</HashCode>
       <FileName>Engine\Extensions\String.cs</FileName>
     </TypeIdentifier>
   </Class>
-  <Class Name="Axios.Engine.Extenions.AxiosExtensions_Texture2D">
+  <Class Name="Axios.Engine.Extensions.AxiosExtensions_Texture2D">
     <Position X="14.5" Y="5.75" Width="2.25" />
     <TypeIdentifier>
-      <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAQAAAAA=</HashCode>
+      <HashCode>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAQAgAAA=</HashCode>
       <FileName>Engine\Extensions\Texture2D.cs</FileName>
     </TypeIdentifier>
   </Class>
@@ -95,7 +95,7 @@
   <Class Name="Axios.Engine.File.AxiosFile">
     <Position X="11" Y="7" Width="1.5" />
     <TypeIdentifier>
-      <HashCode>AAAAAAAAAgABAAQBAAAAAAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
+      <HashCode>AAAAAAAAAgABAAQBAAAAIAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
       <FileName>Engine\File\AxiosFile.cs</FileName>
     </TypeIdentifier>
     <Lollipop Position="0.2" />
@@ -103,7 +103,7 @@
   <Class Name="Axios.Engine.File.AxiosIsolatedFile">
     <Position X="12.75" Y="7" Width="1.5" />
     <TypeIdentifier>
-      <HashCode>AAAAAAAAAAABAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
+      <HashCode>AAAAAAAAAAABAAAAAAAAIAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
       <FileName>Engine\File\AxiosIsolatedFile.cs</FileName>
     </TypeIdentifier>
     <Lollipop Position="0.2" />
@@ -111,7 +111,7 @@
   <Class Name="Axios.Engine.File.AxiosRegularFile">
     <Position X="9" Y="8.25" Width="1.5" />
     <TypeIdentifier>
-      <HashCode>AAAAAAAAAAABAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
+      <HashCode>AAAAAAAAAAABAAAAAAAAIAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
       <FileName>Engine\File\AxiosRegularFile.cs</FileName>
     </TypeIdentifier>
     <Lollipop Position="0.2" />
@@ -119,7 +119,7 @@
   <Class Name="Axios.Engine.File.AxiosTitleFile">
     <Position X="11" Y="9.5" Width="1.5" />
     <TypeIdentifier>
-      <HashCode>AAAAAAAAAAABAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
+      <HashCode>AAAAAAAAAAABAAAAAAAAIAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
       <FileName>Engine\File\AxiosTitleFile.cs</FileName>
     </TypeIdentifier>
     <Lollipop Position="0.2" />
@@ -169,7 +169,7 @@
   <Interface Name="Axios.Engine.Interfaces.IAxiosFile">
     <Position X="14.5" Y="7" Width="2.25" />
     <TypeIdentifier>
-      <HashCode>AAAAAAAAAAABAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
+      <HashCode>AAAAAAAAAAABAAAAAAAAIAAAAAAgAAAAAAAAAAAAAAA=</HashCode>
       <FileName>Engine\Interfaces\IAxiosFile.cs</FileName>
     </TypeIdentifier>
   </Interface>
diff --git a/axios/Axios_WP7.csproj b/axios/Axios_WP7.csproj
index d280c7f..8b2eaf3 100644
--- a/axios/Axios_WP7.csproj
+++ b/axios/Axios_WP7.csproj
@@ -166,6 +166,7 @@
     <Compile Include="Engine\Data\AxiosDataTable.cs" />
     <Compile Include="Engine\DrawableAxiosGameObject.cs" />
     <Compile Include="Engine\DrawableBreakableAxiosGameObject.cs" />
+    <Compile Include="Engine\Extensions\Contact.cs" />
     <Compile Include="Engine\Extensions\String.cs" />
     <Compile Include="Engine\Extensions\Texture2D.cs" />
     <Compile Include="Engine\File\AxiosFile.cs" />
diff --git a/axios/Axios_Windows.csproj b/axios/Axios_Windows.csproj
index b80928b..3fa789c 100644
--- a/axios/Axios_Windows.csproj
+++ b/axios/Axios_Windows.csproj
@@ -209,6 +209,7 @@
     <Compile Include="Engine\Data\DataEvents.cs" />
     <Compile Include="Engine\DrawableAxiosGameObject.cs" />
     <Compile Include="Engine\DrawableBreakableAxiosGameObject.cs" />
+    <Compile Include="Engine\Extensions\Contact.cs" />
     <Compile Include="Engine\Extensions\String.cs" />
     <Compile Include="Engine\Extensions\Texture2D.cs" />
     <Compile Include="Engine\File\AxiosFile.cs" />
diff --git a/axios/Axios_Xbox_360.csproj b/axios/Axios_Xbox_360.csproj
index 9021116..df47048 100644
--- a/axios/Axios_Xbox_360.csproj
+++ b/axios/Axios_Xbox_360.csproj
@@ -159,6 +159,7 @@
     <Compile Include="Engine\Data\DataEvents.cs" />
     <Compile Include="Engine\DrawableAxiosGameObject.cs" />
     <Compile Include="Engine\DrawableBreakableAxiosGameObject.cs" />
+    <Compile Include="Engine\Extensions\Contact.cs" />
     <Compile Include="Engine\Extensions\String.cs" />
     <Compile Include="Engine\Extensions\Texture2D.cs" />
     <Compile Include="Engine\File\AxiosFile.cs" />
diff --git a/axios/Axios_settings.cs b/axios/Axios_settings.cs
index 3b9af6c..c8b6153 100644
--- a/axios/Axios_settings.cs
+++ b/axios/Axios_settings.cs
@@ -79,6 +79,8 @@
  * - Fixing path placement in Farseer
  * - Moving base.draw to last in AxiosGameScreen to make sure Farseer debug information is visible
  * - Removing old debugging code
+ * - Adding an extension to determine what side the objects collided on
+ * - Correcting misspelling of Extensions in String and Texture2D
  * 
  */
 
diff --git a/axios/Engine/Extensions/String.cs b/axios/Engine/Extensions/String.cs
index 3aab7cc..abd1195 100644
--- a/axios/Engine/Extensions/String.cs
+++ b/axios/Engine/Extensions/String.cs
@@ -1,5 +1,5 @@
 
-namespace Axios.Engine.Extenions
+namespace Axios.Engine.Extensions
 {
     public static class AxiosExtensions_String
     {
diff --git a/axios/Engine/Extensions/Texture2D.cs b/axios/Engine/Extensions/Texture2D.cs
index cab554a..3a6b84d 100644
--- a/axios/Engine/Extensions/Texture2D.cs
+++ b/axios/Engine/Extensions/Texture2D.cs
@@ -3,7 +3,7 @@ using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 
 
-namespace Axios.Engine.Extenions
+namespace Axios.Engine.Extensions
 {
     public enum TextureUnionLocation {
         Right,