One disadvantage to owning a Windows Phone is the lack of an official YouTube client. Google is said to be working on a YouTube app for Windows 10 Mobile. Until that becomes a reality, Windows Phone users can rely on third party apps to get their YouTube fix. One such app is Metrotube, which has been around since 2011 when LazyTube had a major face-lift.Metrotube has just pushed out an update to its app, to version 4.6.9. The update fixes problems that users were having in trying to pin a playlist. Other problems that have recently been fixed include one that prevented users from subscribing ...