I recently got a T-Mobile MyTouch 4G Slide and I can not log in to facebook via either the app or the mobile site. Either way it tells me I have an incorrect email/password combination. I've tried following facebook's instructions (clearing my cache and cookies, retyping the site address and attempting to log in again), but I get the same error message. I managed to log in *once* after clearing cache and cookies by clicking a link fb sent via email after I failed to log in several times. Now, I can't log in that way either and I get a message saying I need to enable cookies before I can log in (they are enabled). If I ignore that message and try to log in again, I get the incorrect email/password again. I can log in just fine from my computer.