@adolescent
I'm a beta tester so I have access to the m68k parts of OS4. Well from a while back anyway. They're all PPC now and I don't have a Cyberstorm PPC :-(
@seer
The plugin system is quite flexible. Basically, each plugin is spawned from the main process and the client and plugin communicate with each other via message ports.
I suppose it would be a good idea to release some sort of SDK kit to allow others to create plugins as they see fit.