On N900 (and pcsx-rearmed), a game like Tekken3 is running really faster and smoother in Leste now, compared to the same game in Fremantle. Great.

I think it would be cool to port a NES emulator too, like iNES but sources seem not available.
It was previously possible to run several NES emulators through Retroarch but unfortunately it doesn't work well anymore and i don't really know why.