NES Emulator for iPhone Emerges
An anonymous reader writes "The first emulator for iPhone, iPhoneNES has been released. It run very slow, and has no sound, but hacker NerveGas has managed to modify the source to release an optimized version that is playable. " My favorite bit is that your controller is a clickable picture of the NES controller. Not exactly the ideal UI but still an amazing accomplishment.
I'm not sure if you noticed, but there's both more iPhones on the market (due to popularity) and a larger market for the iPhone (can the PSP make phone calls (out of thoe box)?), and I also would take a gamble and say the iPhone wasn't created with gaming in mind. (Not as much as the PSP, therefore different hardware specs., and a different control configuration.)
Also, you may want to check out the following:
Playstation Emulator for PSP Released
x86 Emulator on PSP Runs Windows & Linux
Gameboy Emulator Released for PSP
Try searching google for iPhoNES. It seems someone else may already have a pretty high page rank for that one.