And isn't Phase like a disabled three fingered kid's GH? like, GH for three-chord monkeys [forgive the pun] or something?
You mean to say it's optimized for Greenday and Everclear songs? They're great for it!
aha, well, consider it's made for the ipod. You really can't get too complicated with a controller like that and still have a fun game. Of course, it IS made by harmonix, so you should expect it to be similar to Guitar hero, or amplitude/frequency for that matter. It's also a rhythm game, which assumes similarities to DDR, stepmania, etc.
You have to keep in mind, most rhythm games are about hitting notes in time. Audiosurf is the oddball in this genre.
Having played it myself, I'll vouch that phase is an awful lot of fun. It can be a bit tricky to track along the curve of the scroll wheel quickly, though, which makes me wonder if audiosurf would translate very well with a similar control scheme.