Apple says that video quality will be dramaticlly improved in iChat, in the next OS upgrade. Do these imporovements only relate to sent images or received images as well? I guess I'm looking to hear some ideas on how much better iChat vid quality is going to get. How does HD play into all this, and is there any reason that iChat vid quality shouldn't ultimatlely (x number of years) be as good as a HD signal or hi res vid?