Portal 2 & Steam Brings Social Gaming To Multi-Platforms (PC’s, Macs, and PS3’s)

I’m not a gaming expert by any means, but this sounds like it’s pretty cool.

Portal 2 is expected to release this coming Tuesday, and according the buzz out there, with a Steam overlay, social networking and multi-platform gaming will be introduced.

This means, through Steam, you’ll be able to play other Portal 2 players who may be playing on PC’s, Mac’s and also on PS3’s – which is something very unique in the world of gaming.

Ok, now someone with more expertise in the subject matter help me out with the details.