Today's remarks about XMPP interop from Page really bother me. In the late 90s, Microsoft was the vendor that wanted interop/federation (on MSN) and nobody took them up on it either.
The mobile YouTube site that Google serves to Windows Phone devices does not display any ads. Therefore an ad-free app for WP does nothing to change the situation that WP users don't see ads on YouTube.
Now, it is possible that some of Google's content is licensed in such a way that only their mobile site is exempt from displaying ads while any native apps are not. However, a C&D hardly seems like the proper course of action here, given that Microsoft says they are willing to display Google's ads.
Right, but the mobile YouTube site could exclude videos that require ads to be shown.
> Therefore an ad-free app for WP does nothing to change the situation that WP users don't see ads on YouTube.
It's possible (although I don't own a WP so I don't know) that the app for WP shows videos that it "shouldn't" without ads.