[Easy]
- Clean up warnings.
- Remove Example Browser in favor of separate projects.
- Speed up matrix Inverse() functions. (Patch exists in mono/opentk.)

[Moderate]
- Implement touch input API.
- Implement force feedback API.
- Add Portable Class Library (PCL) target.

[Hard]
- Merge updates from mono/opentk.
- Add Cocoa backend for Mac OS X.
