Not only will GH3 be available on PlayStation 3, Xbox 360, PlayStation 2 and the Wii - it will be multi-player ready! Red Octane has confirmed this “rumor” that the third spin of GH3 will have some multi-player capabilities.
It's not yet fully understood what the capabilities for online play will be, but it's supposed to be something that's not a cheap "leaderboard" system. Games with leaderboards continue to call themselves Xbox Live capable but is that really "live" play?
Shredding with friends, battling against rivals or any other online play type will be difficult with split second timing on many solos so we're not exactly sure how they'll pull it off. Multi-player is important to grow a community around your game but it must be done correctly. If multi-player turns into a patch fest of bugs and inaccuracies it could turn you off faster than a Jazz festival featuring a speed metal guitarist.
We're a community of older gamers that love to connect with friends to play - single player isn't our thing. Would you invest in a multi-player guitar hero game?
source: joystiq