MAME4ALL has been ported to the GP2X WIZ console to be released very soon:
This is an early beta version based on MAME4ALL 1.6:
– Download and install MAME4ALL for the GP2X.
– Remove old files in the ‘frontend’ folder.
– Overwrite the executables with the WIZ ones.
– It is faster than the GP2X port.
– It contains some specific features, such as horizontal scaling with linear filtering in 16 bit color mode.
Get it HERE.