Feed Me is a popular Windows Phone news reader that's used and loved by many (including some of us here), but we've been informed by the developer that YouTube video playback has ceased to function correctly. This is due to utilising unsupported and unofficial endpoints to achieve the playback and connectivity being hampered by changes made by Google. The good news is an update is in the works.
The bad news is that while we're currently unable to check out and enjoy YouTube media through Feed Me, we're told the update won't be available until next week.
To lighten the mood, the developer has revealed to us that development for Feedly support for Feed Me will commence in the near future (once this update containing the YouTube fix has been rolled out).
If you haven't yet checked out Feed Me for Windows Phone, you can download the app from the store for $1.99 (trial available - available for both Windows Phone 7.x and 8).