They said no to voice chat sorry they said due to JP about harassment, language barrier and no translate, They would have to talk to Sony to find a way to make it work. simple version of it all would be cost way to much money for something people wont end up using like in wow very small % of people use it and for SE it would cost more to find a way to make it work cross ps3/pc

PS3 users can use there smart phone and download the app or use a laptop to talk on TS,mumble,vent if they don't have a laptop or smart phone that ok they just have to find a ls that don't make you use them to listen there a lot that log on vent,mumble,ts and they still type everything and no one really talks so that not a big problem.

maybe one day they would add it but i still don't see the point people never going to use it,.