Ah, so I'm not thinking about the central server, I'm thinking about P2P, as that's going to be one of my primary use cases for this. Basically, being able to say "what's running at IP address X" and getting some stats about that installation. And I want that to be backwards compatible even to non-P2P-syncable versions (like 0.10), as it's still useful to know what the device is running, and other details about it.