[David99]

The Sunplus chipset in these, while quite versatile, is not powerful enough to play all of the game ROMs. This chipset is really meant for low end digital still cameras. A lot of the game ROMs on this chipset stutter or stall all together. (one of the best portable NES game emulators I've used is the Newsmy MINIALL VX1000). It might also be a symptom of bad coding or poorly optimized code but I think the chipset bandwith is mostly at issue. It's a shame because it would be nice to have a universal game emulator that can fit in your pocket. I haven't tried the Gemei or Smart Q emulators though.