Nobodies heard of xFire? Thought that was old. I mean, I THOUGHT THAT was OLD.
Yeah, not that old. Maybe 3-4 years old.
It does offer a lot of the same features as Live does, it's probably the closest thing to being as fully-featured and functional on the PC, but it's in-game support isn't that great (lots of alt-tabbing required which resource-intensive games don't like) and it's continued to have a host of bugs and other problems.
It never really caught on anyway. Still around, but I'm not sure if I've ever met a single person that's used it. Steam Community has probably caught on more and faster in a much shorter period of time.