Microsoft is considering courting Facebook to use Windows Phone as the basis of the oft-rumored Facebook Phone, according to insider whispers, using the fact that it isn’t Google as a key selling point. Although recent leaks have suggested Facebook intends to use a significantly reworked version of Android as the basis for its own-brand handset,  Business Insider ‘s source claims Microsoft believes development is not yet so far advanced as to prevent it from scooping the social site’s business with a well-played Windows Phone push.