I've got a lot of friends who are playing non-RB2 games and that's all I pretty much have time to play with my family and stuff. I usually play weekends and on some occasions weeknights EST. See the sig for what I play. I don't care if you FC, if you barely pass a song we'll work together to pass it, and this is not an official band. Sometimes I have the mic connected and sometimes I'm too lazy to take it out. If you invite me, kindly let me know what you play so that I can whip out that instrument. My DLC info is in my sig. I would prefer to have someone with similar DLC but if not no big deal.
As for RB3. I will be most likely purchasing at launch with a keyboard. I'll likely stick for online play with my preferred instruments until I get keyboard up to expert. My sig has my PSN as well.