Originally Posted by noahvt
... you could just release non working build like many devs do with their custom ROMs ...
No way, missing camera (and bluetooth) are missing features too big to warrant a release.
Besides, would anyone really
permanently switch from Android to FxOS on Xperia SP if I fixed these two issues and released it? I'd bet money on it that people would use it for a couple of hours maximum, then realize they need the Google services that push all notifications to the phone.
(FxOS doesn't have push notifications for most things, pretty much everything
has to be reloaded / refreshed manually, even syncing contact data.)