according to this xbox article,  http://www.xbox.com/en-US/press/2009/0403-lipsmic.htm the mics for lips should be playable for rock band 2.
has anyone been able to do so? or are they making a new wireless mic for gameplay with all the other music games besides lips? thats what they make it sound like in this article,
http://www.xbox.com/en-US/press/2009/0623-wirelessmic.htm.

i'm just curious cause a wal-mart where i live is selling the lips game w/mics for 25 dollars. i just really want the mics for my rock band 2 game.