The concept was first considered for win7 but was ditched at the last go around. I heard its a check out type of system, where in-order to install the package will be verified. Just another act of freedom corruption IMO. Its the same thing as locking our cars at 80 mph or so. I for one will be boycotting this os. I installed it this weekend for my father on his new PC and I have to say I'm not impressed. Its targeted for Mobil devices. A real joke actually, it even assumed you can swipe the screen ? I tried to open the start menu ( now just a screen of icons ) and it said swipe left or right to see more icons. Yea... um my PC monitor does not have a touch screen morons??? So you had to do some mouse clicks to get it to zoom out. Was a rather messy OS, IMO.