The problem nVidia got in putting the NV3x for such a market though IMO is that even if it's very flexible, they'll never manage to get their FP32 units to less than 3M transistors. And if they do, well, I refuse to even imagine the performance.
I refuse to even imagine the power consumption. What I can imagine is someone with such a snappy mobile phone to be searching in small frequencies for a power-plug because he has an incoming call
IMR PDA chips still not higher than 1*1 for a reason
Seriously, I swear by my PalmOS device. Battery life, smoothness of interface and ruggedness in a small package. I use it mostly as a glorified filofax, but it is lots smaller, and everything in it is synced to my computers, and if relevant to my phone. Not something you need per se, but once you have it, and have gone past the "new toy" stage, it's actually pretty useful.