MyTube! is getting a pretty major update with lots of changes today on both the Windows Phone and Windows 8.1 version of the app. There are a number of highlights, but perhaps the most notable is the ability to install the trial version of the app without restrictions on either platform if you've already purchased it on the other. Also worth noting is that users can now bookmark playlists from other users' channels and download videos in 480p and 1080p.
Full story from the WindowsCentral blog...