[Matthew White]

That depends entirely on the Java platform on the cell.

For example, most motorolas have a very complex java platform and would have very little trouble handling zone, for instance, or any of the classic pw's. The only problem is download size, the pw being made for it is not a bad idea. Furthermore, a chat client to graal wouldn't be a bad idea, neither would a mobile trading platform, so you JUST loaded the trade room.