I'm still somewhat skeptical, and the reason for that is the hardware.
We've reached a stage where just about anybody can do something similar.
Take the raspberry pi
Its close to the same specs running Linux, for 25 bucks.
Or The nD
even. Touted as the indie handheld console.
You're going to see more and more of this kind of thing. So don't let the buzzword "indie" influence you too much, cause guess what, they are going to run that into the ground.
Anyway, if you want my money, you're going to have to have some modularity. I'm not going to buy it, and then have to buy another when they decide to update the memory. cough Apple