Hey there, although i'm on bravo i've found a weird reproducable bug, when playing GTA3 the UI disappears the moment i put a second finger on the screen.
Although the performance in GB (CM7.2) is worse, that doesn't happen there...
I'm on the latest build basing on your p13 afaik and using xdata
I've made two logcats of this happening one short version
and one longer version
(the longer version is including game-start and game-stop, the short version basically just the vanishing buttons...
not a terrible bug, but maybe it helps