Trying to get homebrew running on your PSP? Want to add a screen light to your Game Boy? Trying to figure out how to work your GP2X? By popular demand, discuss it in here! (This forum is for pre-built handhelds, NOT custom made portables!)
I'm glad they decided on four buttons. Anything more than that would be frustrating, since you're hand is pretty much strapped into place (as opposed to being able to slide up and down like on a real Guitar Hero guitar).
BTW you haven't lived until you've seen the ridiculous commercial for it (a joke, I hope).