Does anyone use Google Talk (hangout) video chat using Messages app on Mavericks, or even ML? I thought the video chat function using Messages app only works with Apple device to apple device, but just recently found this help page from apple: http://support.apple.com/kb/PH12020?viewlocale=en_US It is saying that Apple to Apple video chat will be using FaceTime app, and Google Talk video chat will work through Messages app itself. But when I click on that video chat icon on top right, it starts FaceTime, and says that "___" person is not available for FaceTime. But that person, is actually me using another account on another computer, and I'm definitely available. I was testing it out. It doesn't work though, so I'm wondering how other people using Google talk with Messages app video chat? Thanks in advance for your help!