Like most people, I don’t really get what GBase is – but Bill Burnham has an interesting take on it.
…it should not be lost on people that once Google assimilates all of these disparate feeds, it can combine them and then republish them in whatever fashion it wishes. Google Base will thus become the automated engine behind a whole range of other Google extensions (GoogleBay, GoogleJobs, GoogleDate) and it will also enable individual users to subscribe to a wide range of highly specific and highly customized meta-feeds. “Featured listings” will likely replace or complement AdWords in this implementation, but the click-though model will remain.