:) To be fair, G+'s Hangouts is also currently a desktop app (requires the Gtalk plugin I think). I suspect Google will move away from that and go towards a full web page. We'll see. This is all so exciting.

Yes but they at least provide the appropriate plugin for Linux users.

Yep! I was Hanging Out on Ubuntu with 6 friends on about day 2 of G+. Facebook doesn't even support my OS, so there's absolutely 0 chance I'll use their video chat.