I have Project 64 as well and it's amazing!

Just before Christmas, I bought the HTC Evo for Sprint. First--it really is as amazing as they advertise it to be--and the first thing I did was search for an emulator app, sure enough I found it. It has emulators for almost every old system except the N64.

I just need to find a USB or Bluetooth controller that this thing is compatible with and I'm set.

A few nights ago I was playing NBA Jam and laughing. Brings me back to '93.

Boom shaka-laka!

EDIT:
I like your avatar IT, I am an iPhone developer, I have an iPhone, but I think it sucks. My Evo was actually cheaper and can do a so much more than the iPhone 4.