From ZDNet I asked Microsoft whether the video is legit and received an official no comment. I have to say I think it’s the real deal. It has all the hallmarks of a real Microsoft production, including the fact that the name on the company doors that Gmail man opens when visiting an office is  Contoso Ltd. As Microsoft customers, partners and watchers know all too well, Contoso is Microsoft’s favorite fake company name, and is used in demos for all kinds of Microsoft products.