Wait ... another Rock Band?
Imitation is the sincerest form of flattery right?
and then there is Guitar Hero IV trying to catch up even though they outsold Rock Band by a massive ammount.
http://www.xboxic.com/news/4683
God has chosen the world's insignificant and despised things —the things viewed as nothing—so He might bring to nothing the things that are viewed as something, so that no one can boast in His presence. - 1 Corinthians 1:28-29
Imitation is the sincerest form of flattery right?