MonoTouch 3.1.0 was released to include full support for the iOS 4.1 SDK, some of the highlights include:
- GameCenter/GameKit support
- New CoreText font manager support
- New AddressBook APIs.
Features not previously available, but now present:
- CGFunction/CGShading support
- New AVFoundation classes
- Vastly extended our MonoTouch.Foundation support
In addition to these changes, since version 3.0.8 (our first release to support iOS 4.0) we have made a number of improvements to MonoTouch, check these release notes for more information.