I use a modded PSP phat for most of my emulation gaming. What put me off the Dingoo (which I have) is how much of a step down the screen was from the PSP, and the GCW's screen looks to be only a marginal step up from the Dingoo.
If JXD can pull off the 5-inch screen for a handheld with a touch screen (albeit a resistive one) for $99, what's stopping GCW from putting in one for a normal screen?
I'm also concerned about emulation. The Dingoo when I used it last had trouble running Super Mario World, much less Star Fox. And if this has similar problems, it's going to look really bad next to the Android devices that can run SNES games flawlessly.