You can't expect the average user to know all the key combinations just to get out if 8 what was a quick simple mouse click in 7.
I don't think the business community would go for something with such a major learning curve.
I am a firm believer Win8 will be like Vista and Win7 will remain in use for quite a while yet.
I also agree people may read left to right but they also read top down. scrolling left to right does not make it easier. The scroll wheel was well designed to work the way people do read.
Long...
question, though. Does this mean all Windows users will have to upgrade monitors to use this OS? Will keyboards/mice become obsolete? The demo looks great from a tablet perspective, but I don't see it as such for a desktop system.