It makes sense for FB to want to control the distribution channels, and given their size and the importance of mobile, doing a FB phone is a plausible strategy. Considering the games that go on with some manufacturers (Apple) and the various carriers, FB should be concerned about its weak hold on the mobile channel.
Whether that means FB branded phones, deals with carriers for preferred placement or access, or something else is hard to say.
Whether that means FB branded phones, deals with carriers for preferred placement or access, or something else is hard to say.