It's open source, right? This means the source code should be available somewhere, so maybe someone with enough experience could update it for Tiger/Leopard (or, how about this, port it to Intel! It would probably need lots of extensive, nontrivial work to do that, though.)

Also, I seem to recall that there was a project to run OS X PPC apps (sort of the "new" Classic") on Lion and above by coming up with an open source Rosetta equivalent.

If anyone has even minimal experience in these matters, maybe we could give this a try?

c