The Windows Phone 8 YouTube app has been woefully underutilized, acting more or less as a bookmark stand-in and redirecting users to the web. No more, as the app's getting a major update today that makes it act more like a standard WP8 app -- you can pin various components right into your Live Tile set and play videos (as music) in the background, even when your phone's locked. Standards like social sharing and search are also in there, and a "new and innovative playlist design" rounds out the refresh. Perhaps the
