I know there was one person on the eqemulator forum talking about making a mobile unity client for EQ. I know that ultimately wouldn't have the same feel as original eq and even if he completed it, it would fall flat.
But what about a new idea... making a mobile console that plays actual EQ?
How about a scaled down windows PC small enough for you to use it as a mobile device sort of like a tablet? Using titanium edition I think you could get away with something pretty small. Even possibly running a windows emulator to play Everquest and it would be compatible with the NEQ server and all other classic EQ emulators.