Well, as said, and I'm repeating this like a broken record, MS (Ballmer) think that they can leverage their PC OS share to convert people to Windows phones and tablets, by forcing them to already work unnaturally with a tablet interface on Windows on these desktop/laptop non-touch PCs. Instead of doing what Apple has been doing, with iOS and OS X, MS just lumped them clumsily together and is shoving them in front of our faces. Ballmer plans to release more devices running Windows Blue in 2013 in an effort to copy Apple. These changes in UI are not changes which were researched out, they're just a forced move aimed to create more customers for MS mobile devices. Hence it's not in their interest to change things. The old way of doing things will be sidelined even more and touch interface elements will (have) invaded Intel PCs which neither have touch or where touch is present but is only a gimmick because of gorilla arm and need to actually type on a keyboard/use a better fine mouse pointer.