I am amazed, you there have succeded in making some mame roms work smoothly on the 770, I suppose it was not trivial at all! ;)

no, really: how can you hit the tab key, or otherwise: is there any way to change the keymappings for the games??? I can't find it.

And, I want to ask: is it impossible to implement "software buttons"? I mean, render the emulation screen apart from a little margin, say, on the right side of the display for a horizontal view. In that margin, there will be two or more buttons pictured, and pressing them with the stylus sends the corresponding keypressed code to the emulator (e.g xmame). Perhaps this could be possible by making the buttons with the gtk widgets, being the emulated display a continuosly updating canvas in the application window...

That would increase playability of much games, using the pad for directions and the stylus for buttons (or fingers, if we don't care for our display to be shiny clean ;)

Anyway great work, this had to be done ;)