Microsoft Miracast dongle surfaces, will take on Chromecast

Microsoft has a dongle in the works, and it is poised to take on Google's Chromecast by the look of things. The Miracast dongle would allow Lumia users to broadcast their mobile's screen to an HDTV, the benefits for which are obvious, and include watching movies on the big screen. The dongle was spotted on the FCC's website by Windows …