Ubero was doing useful work, but that work was completed and no new work is being done at this time. They are not dead, just sort of on indeterminate hold.
D2OL might be your best bet. Strictly speaking, it does not need 10.2 so much as it needs Java 1.4.1. If you could install Java 1.4.1 (from source if need be), D2OL just might run fine. Since D2OL uses Java, it should also respond to the memory allocation tricks we developed for Ubero.
I'm not up on dFold's latest clients, so someone else will have to speak on that. Since it still starts from a random seed number, it does not have a time limit, so it might be a good bet also. But I've heard a lot of complaints about the client recently.