JStella Atari 2600 Emulator

That's a good idea. I was going to wait until I had something at least working before I committed anything but perhaps now is the time to create a project.

Arguably, this could be a branch or addition to JStella, like the approach taken by javagb, where most of the code is common, with packages containing various UI implementations. However, I found the abstraction prevented the sort of optimisation required for a small, light application. Remember, we're looking for a 64kb application on a tiny screen!

Netbeans is very good for J2ME. Perhaps Eclipse has improved, but Netbeans is more complete and integrated.