Meh mixed feelings. First the whole Metro UI seems to run on top of a normal Windows as an alternative glorified launcher. He mentions that Apps are written in some kind of new HTML/Javascript framework - now I don't know exactly how its gonna work but a lot of people were hoping that MS was finally settle on .NET in terms of API design. If this was a spin off of Windows, I'd probably be a lot more happier, but as it stands, I see a lot of Window 8 PCs, where the first thing people (and companys!) will do, is disable the new "MetroUI" and have the usual taskbar/explorer layout with all the "legacy" app(lication)s like .. for example .. Office2010.