I just purchased the 3.1 GHz 27-inch iMac today and found these 2 items: 1. Came with 10.6.6, and after running Software Update, restarting, running it again it shows that there are no updates (10.6.7 came out in March). 2. In System Preferences under Keyboard it has all the options active and showing for keyboard illumination, which obviously isn't available. I am using the stock standard supplied Apple keyboard and Mighty Mouse. FYI, Geekbench score of 8,400. All stock. 32-bit version only.