First time accepted submitter exomondo writes "Google has given Microsoft until May 22nd to pull their Windows Phone 8 YouTube app from the marketplace and disable it on customer devices. It not only includes a built-in ad blocker but also allows users to download videos and doesn't impose device-specific streaming restrictions outlined in the YouTube Terms Of Service. A Microsoft spokesperson said in part: 'YouTube is consistently one of the top apps downloaded by smartphone users on all platforms, but Google has refused to work with us to develop an app on par with other platforms. Since we updated the YouTube app to ensure our mutual customers a similar YouTube experience, ratings and feedback have been overwhelmingly positive. We'd be more than happy to include advertising but need Google to provide us access to the necessary APIs. In light of Larry Page's comments today calling for more interoperability and less negativity, we look forward to solving this matter together for our mutual customers.'"