I can't wait to have a Due...
A version 2 of the console is under development, a well finished one, with smt lipo, vibrator, joystick and all that stuff in a very compact size. Il will come with a complete library that handle frame rate, playing music from sd card, diplaying images and sprites... A lot of work, I don't know when I'll finish it.
But when the Due will be released, I'll make a V3.0 with a 3.2" touch screen, an IMU, a 16bits port for an high refreshment rate, etc.... ok, I'm perhaps dreaming, but it would be marvelous.