Thanks for all the reports guys (and the icon pack!).
For information, I made a lot of progress. First, i managed to get hardware scaling. The emu now run very, very speedy

I didn't find a game get that does not run fullspeed even with fullcreen scaling (cps3, pgm...).
Else I fixed/added save states, (basic) joystick support, buttons are now assignable in the config menu, and more. I also got a partial audio, the sound is very crappy but its a start.
I'm currently fixing/adding rotation support and input improvements. I hope to release this in a few days..