I've got back into MegamameCE as i sorted out the buttons finally as they were mapping a bit strange before
I have a long list of roms on my machine. Got the Asus MyPal 620, i play Bombjack a ton which has sound and is 100%, Green Beret seemed to crash at the end of the 1st level though.
Out of the 60 or so roms i have on my PPC 50 seem to run very very well and i'm on the lookout for others
The sound is a bit distorted but that may be my latest rom update.
Very happy though with it, amazing some of the old arcade games you can get to run full speed on it though.