Well, no one has done it yet, but unless there is something in the firmware to prevent it (which I doubt), or something in MorphOS2.1 "EFIKA" version to prevent it, (again, which I doubt), then it should be able to add another 128mb of RAM to the underside of the EFIKA exactly where the board was designed to accept additional RAM. The manufacturer offers to add RAM if a minimum number of boards are ordered that way, so it is possible, it is just that no one other than the manufacturer knows what needs to be done to make it work.