If anybody has tried the 1-888-FACETIME line to test out facetime, it seems that the apple reps are using a webcam instead ... they talk as per the script about switching to the iphone etc. but for some reason, it seemed like they were not using iPhones (image quality, orientation, etc.) ... Apple probably coded some internal tool to mimic facetime .. i tried this call twice and i got the same impression both times

The functionality is no doubt coming to iChat, maybe they have special build they are using to do it now.