Well, I was so impressed with Mame emulation (for a handheld) on the Wiz,
I picked up a Caanoo (I had another reason but that's for another thread
) and I have to say the controls work beautifully, I was very skeptical of the analog controls, but they work much better than any d-pads I've used, to me this is the by far the best handheld Mame experience, better than I could have hoped for, I'm pretty excited, I've got over 200K on Donkey Kong which I never thought possible on a handheld, blows the PSP, Dingoo, and even the Wiz out of the water, Highly recommended, plus it has video out and USB pad in, but I haven't even played with that stuff yet
the only drawback is that it is an LED screen, the Wiz has it beat there, shame, this thing would be close to perfect with an OLED screen IMHO
to sum up Handhelds for Mame Emulation:
Hacked PSP, ok D-PAD, good ABXY buttons, analog controls poor, very difficult to get working properly, slow CPU, I could only get a handful of games to work properly $40-80 with pandora
Dingoo A320, ok D-PAD, ok ABXY buttons, slow CPU, very small and light, a little flimsily built $80-100
Gp2x Wiz, ok D-PAD, the ABXY buttons are a little awkward, good CPU speed, KILLER OLED screen, built pretty well, still a tiny bit of button shake $100
Caanoo, Great Analog controls (No Really), great ABXY buttons, regular screen, good CPU speed regular screen, a bit lager, but I like the bigger screen size, built like a tank! $150
Winner: Caanoo!