This year, during the summer of code three students worked on Bittorrent support for Mono/.NET. Each one was in charge of an independent piece: a bittorrent downloading (Alan), a tracker (Gregor) and the GUI (Piotr).
The code is licensed under the terms of the MIT X11 license, which means, anyone can embed it anywhere.
If you make fixes or improve the code, it would be nice for you to contribute those back. Let the sharp bitorrenting begin!
Screenshots will come later.