Considering that the folks at gp2x development haven't been able to do the arm re-write, I'd think that your initial assumption is correct. If you ask, me, I'd focus on snes emulation myself. Or maybe genesis/megadrive. Maybe first on genesis, as there is already a full ARM emulation of 68000 (cyclone) and full emulator port for s60 handsets (picodrive) and their sources should be pretty quickly converted to aloow full fps playback of genesis games. I have picodrive on my n-gage and it totally rocked. I would love to see in ported to IT. OTOH d-pad still sucks so bad, you probably can't play anything on it. But, OTOH, porting it might convince Nokia to improve for the next generation.