Either the download/developer link is wrong, or this app is no longer available/supported.

A shame, because I whole-heartedly agree with the other 2 reviews -- this is the best iTunes controller I have found. (Especially like the fact that you can fast-forward and rewind -- I'm sure there are others that do this, but I've tried 3 or 4 others and none of them did.)

Others also seem to limit the hot keys you can set, while TuneKeys does not.

And, yes, it's very light -- using it on an old G4 with not much RAM, and it's still super-responsive and doesn't add to startup time.