Ask HN: Facemash for Startups

Would the HN crowd be interested in a service that pitted Startups (even concepts, ideas, demos) against others in a format similar to Facemash (i.e., 1-on-1 voting), ultimately ranking the Startups?

Does something like this exist? As it seems it would be useful to a community such as HN for identifying new Startups, funding opportunities for the startups themselves, and getting a product distributed to potential users?