Microsoft recently unveiled its all new Operating System for smartphones, the Windows Phone 7. Although its a successor to Windows Mobile Platform. Windows Phone 7 has a totally new and user-friendly interface and is smoothly integrated with other services. Applications for the Windows Phone 7 are currently being developed and applications for Twitter, eBay etc. are already available. Some more applications have been released, of which some are just demos. Here are the videos of some of the recently built Windows Phone 7 Apps.
Source: MSDN Blogs