What's the difference between the Arduboy and the Arduboy DevKit?
The DEVkit was the prototype made in low volume for the first people to start testing. It's wired a bit differently and has no cover around it.
Developer Kit is also discontinued.
And when comes the Arduboy 1.1/2 (A Arduboy with a SD Card Slot/More Buttons/a 256x128 Display)
For the general request post. But more buttons are about last on the to-do list sorry!