Now there's an interesting sight

It's no longer a project!

Sorry to disappoint, but I've been researching other options. Turns out that the Enlightenment Foundation Libraries do just about everything I've been proposing to do with IKKlib. As does Quartz/Cocoa. So what it comes down to:

EFL can be used on Linux, with great performance on handhelds

EFL can also be used on Windows

Quartz is fine for Mac OS X.

The only "problem" is that I'll have to get used to writing interface-agnostic programs. This isn't so bad, though, because SDL isn't all that elegant off of Linux. Heck, it's hardly elegant on Linux. Sorry, Sam.