I know this may be off topic but I wasn't sure where it should go.
I have installed mame4all on my psp and on my nexus 7. On both machines I can play fine for about five or ten minutes and then the controls start acting strangely. Pac man will only go left for instance. If I go into a different game everything works fine, but only for about five or ten minutes and then it goes haywire again.
I am using mame4all from the google play store on my nexus 7 and tty man's mame4all latest version my psp.