Although this is a much better looking concept than what is currently available in Windows 8 I still do not understand how it solves anything for people who actually need to do development on these machines. I would hate to have to do development in an IDE such as Visual Studio or Eclipse while being restricted to this sort of interface.
Trying to force a tablet interface on a desktop machine is simply not acceptable. It makes matters even worse when you look at a server operating system such as Windows Server 2012. That is simply the biggest FAIL for an interface on a server OS I have ever seen.