I'm the same Rushmnore i have mame working on anything which will take it, Like your dingoo i have mame4all on my gp2x wiz and its a great version of mame to have on the go. but carrying a wiz and a phone around is a bit too much,but this version can potentially be better and i have full confidence that flandry with get this emulator working to its full potential on the N900.

I am such an old school gamer i have an xbox 360 sat there in my back room and i just cant help myself going back to mame.(so sad)
My 1st experiences of arcade games were space invaders with green colour filter and phoenix and both were the sit down table top versions with reverse screens for player 2. great times.