http://www.youtube.com/watch?v=qIMuJTrxuhQ&feature=relatedjust watched
apparently you CAN use an old windows style desktop and toolbar without any settings altering.
but the start menu is missing. so i guess a person would have to place a bunch of shortcuts on the desktop to control panel, C:, networks, and other such things.
im thinking the average user wont be able to customize things like win7 style like i will be able to.
but then again, the average user is handicapped and prob will like the metro stuff anyways