Microsoft have issued an update to the new Windows Phone YouTube app. Version 18.104.22.168 includes bugs in the version 3.0 releases which should improve the stability of the app. Version 3.0 was a major update to the app as the previous version was more or less a shortcut to the mobile web version of YouTube. The app is for Windows Phone 8 with a Windows Phone 7.x edition is on its way.
You can find the app in the Windows Phone Store.
• Pin any video, playlist, channel, and search queries to Live Tiles
• Manage your YouTube profile with your unique My YouTube page
• Manage your playlists, uploads, and video lists
• Find channels, videos, and playlists with the quick access search bar
• Share videos to your social networks, e-mail, and text messages
• Let your kids watch safe videos in Kid’s Corner and keep their own profile