I found this Open-Source GTK paint program, it's actually a pretty good program. It would be cool to work with GTK and stuff, and now with John's common files setup, I could probally work that in. Here's a few links, I'll play around with it a bit more, it's not Paint.NET, but it's still pretty good, let me know if you guys have any reasons why I shouldn't give it a shot.
And John, please let me know if you already have, or plan to do this one yourself. Because I know my version will just become pointless if you release a version.
Thank you, here are the links.
It seems like a good choice, as it's a good program, it doesn't use .NET :P, it will help me learn to make GTK apps, it's under the GPL, and development is continuing.
But do let me know any reasons why I shouldn't, and let me know if you would want it.