diff --git a/Documentation/Todo.txt b/Documentation/Todo.txt
index 0ddd6f8d..890399d1 100644
--- a/Documentation/Todo.txt
+++ b/Documentation/Todo.txt
@@ -1,6 +1,26 @@
 Generic Todos:
 + Correctly implement disposable pattern in all relevant classes (WIP as of 0.3.8).
 + Investigate startup lag.
++ Investigate call performance (+-5%) (AMD Venice 3200+ @2250MHz, Vista Business x64, .Net 2.0 x64 optimized build)
+	+ Dummy managed call:
+		+ Inline function:		 100000000 calls/second.
+		+ Function with try:	  74500000 calls/second.			<--- With try { } finally { } block
+	- Delegates loaded with reflection:
+		+ GL.Vertex2f:			  21878992 calls/second.			(wrapper->delegate->import->unmanaged)
+		+ GL.Vertex2fv:			  23237133 calls/second.			<--- 'fixed' statement.
+		+ GL.ARB.ActiveTexture:	  20133679 calls/second.			(wrapper->delegate->unmanaged)
+		* GL.ColorPointer:		   2870254 calls/second.			<--- GCHandle.Alloc and Free
+	+ Delegates loaded with constructors:
+		+ GL.Vertex2f:			  22396040 calls/second.
+		+ GL.Vertex2fv:			  22448539 calls/second.			<--- fixed statement
+		+ GL.ARB.ActiveTexture:	  19920181 calls/second.
+		* GL.ColorPointer:		   2340392 calls/second.			<--- GCHandle.Alloc and Free
+		* GL.Vertex2fv:			   2260000 calls/second.			<--- GCHandle.Alloc and Free
+	+ Direct DllImport (import->unmanaged)
+		+ glVertex2f_1:			  10445125 calls/second.			<--- Unmanaged Code Security active
+		+ glVertex2f_2:			  24684893 calls/second.			<--- Unmanaged Code Security suppressed
+		+ glVertex2fv:			  25896611 calls/second.			<--- Unmanaged Code Security suppressed
+
 
 
 Bind:
@@ -9,8 +29,7 @@ Bind:
 
 
 OpenTK.OpenGL todos:
-* Change the GCHandle method of pinning to 'fixed'. The behaviour is different: fixed guarantees pinning of the whole object.
-* Different classes for each extension category (ARB.Foo, instead of FooARB).
+* Improve call performance for functions that use GCHandles.
 + Inline XML documentation.
 + Add complete Wgl, Glx, Agl and Glu bindings.
 + Get rid of the "object" overloads in favour of generics.