I looked it up and all i found really was this:

Z2Live Rolls Out Voice Chat for iPhone Games, Announces New Mobile Game Community | Xconomy

Other than that has there been any word of this possibly coming to life? I mean it's not a big deal really because you have all played xbox 360 or ps3 one time or another i'm sure and you've noticed how brutal and profanity-filled the communities are, but it would be a cool idea for less-competitive games don't you agree? *ie. COD Nazi Zombies*