Put it into a "Nokia Communicator" case
Complete with a wide screen LCD and a standard battery, as well as a "dumb phone" in the lid, so the Raspberry Pi can be in "suspend to RAM" when the case is closed.
Complete with a wide screen LCD and a standard battery, as well as a "dumb phone" in the lid, so the Raspberry Pi can be in "suspend to RAM" when the case is closed.