Nicholas Carr thinks these kinds of techno-utopian videos are creepy. I’m not sure about that, although both of these videos are some what homogeneous and perhaps a little ‘antiseptic’ – but they are marketing pieces, not true works of science fiction. They actually remind me of rather badly thought out ‘perfect’ user journeys. If you want something a little grundgy, try William Gibson.
For more on Microsoft’s vision, see their Office Labs site.