During its Back to the Mac special event today, Apple announced the release of FaceTime for the Mac. Currently in Beta, the new standalone application allows Mac users running OS X 10.6.4 or later to FaceTime video chat with iPhone 4 and fourth-generation iPod touch users. The software integrates with the Mac’s built-in Address Book, and automatically rotates the image on the Mac end when an iPhone or iPod touch user rotates their device on…