I've heard around 500megs is being used from the 8GB(7.4GB) for OSX but i want to know how much is left over. this is a screen i took watching the iphone introduction at 11:25secs i know theres a higher resolution image but it doesnt show the bottom half i remember looking at a higher resolution picture of that slide some where else and i cant find it maybe you could help me out? So far this is what i got Green = Unknown (Wolf? Work?) Blue = Audio Purple = Video Yellow = Pictures Orange = Other White = Free Space i'm in the progress of downloading the mac world keynote from itunes podcast.