I guess it was only a matter of time.
Well like you said, cool for KISS fans who dig Rock Band. Visually its pretty darn cool. I personally love Rock Band but rather dislike their controller. "Dislike" may not be the word I'm searching for because its too weak.
I'm a little angry these games keep insisting you buy a new guitar. For example, I'd love to get perhaps just the drum set for Guitar Hero World Tour but I can't. You have to but the whole thing again. If I did I'd have four guitars in my house and 3 microphones. I know they're trying to make money but sheesh.