Google Syndicated Search - what is it?

I have no idea, but Google has registered lots of domain names, so it could be something. Garett Rogers suggests:

Google Blog Search could be the recipient of a new name (something similar to Google Syndicated Search), or they are working on a separate service to aggregate all RSS/Atom feeds it can find — not necessarily just blogs.

...Another possibility (and the one I think is more likely) is support for the OpenSearch format created by A9.