We’ve already seen an 11-minute walk-through video comparing a new Windows 8 beta tablet to an iPad 2 running iOS 5, but there are plenty of features Microsoft is cooking up that didn’t make it into the beta release of the OS. In a new video, Microsoft highlights a handful of currently unavailable applications that make use of the oft-praised Metro user interface Windows 8 borrowed from the Windows Phone platform. In the video, Microsoft shows off several apps including Mail, Calendar, People, Messaging and Photos, which features seamless Facebook and Flickr integration. The People application also features Facebook integration, pulling Facebook friends and address book contacts into a single stream. Microsoft’s full demo video follows below.