They will be able to exert any control they want on the Windows Phone through Microsoft. Also, what prevents them from showing ads in mobile apps? They did a gr

They will be able to exert any control they want on the Windows Phone through Microsoft. Also, what prevents them from showing ads in mobile apps? They did a great work locking everyone out of functionality that would enable direct FB access, app developers can only access FB as an FB app, so no ad-less competition there.