I'm all for it -- good old free market and whatnot, but... how exactly would one pick the most promissing project? Do we have any undisputable metric of project progress (both completeness and quality) yet?

Would we judge competing projects by kLOC? By percentage of code coverage? By extensibility of architecture? By percentage of GUI widgets already laid yout (even if just mocked up)? Or perhaps by conformance to an arbitrary test suite -- which raises the good old `Quis custodiet ipsos custodes?' problem?