NES emulator for the iPhone
Although there’s no SDK for iPhone developers (well, unless you’re building a web application), that hasn’t stopped programmers from hacking into the iPhone and making their own applications without the need of any official support.
One of the first of these new programs is a NES emulator! Although it’s still slow and the controller isn’t quite “good”, it’s a great proof of concept. And you can be sure we’ll see many more of these in the future.