I'll be traveling the world for the next 6 months and I'm only bring my iPad2, most the places i'll be staying at will have free wifi in the hotels. From my room i can barley get a signal if any at all, and traveling down to the lobby is a pain in the ass. some places will not have ethernet connections in the rooms. is there something i could buy that would boost the hotel signal so i don't have to leave the room?????