Since I have an R36S already, I won't be getting this. It is basically the same form factor and supports the same emulated consoles. Plus that only cost me $40 USD, which is ~$15 less than the PowKiddy?
If this was a PSP or GBA form factor, small enough to fit in my pocket, I would consider it. Might be good for someone that does not have a handheld and doesnt want to break the bank.