I know it's just a proof of concept currently, but why are they saying it would need new devices to run well? It seems like, since the DS and our devices are both ARM based, with some obvious modifications to run arm code natively and not emulated, you could get it running pretty well. At least that's what I had gathered from previous discussions about it.
Bunch of dumbphones
HTC Fuze (Raph 110) O2 Wireless prepaid to avoid paying for data
HTC HD2 Running Americanandroid and YukiXDA WP7
HP Touchpad 32GB (Got it for $150
Rockbox VGA port