i guess the model would probably planetmath people using the wikiversity site with local support;
Not sure what that entails, could you say more?
but of course there are enough qualified people on the wikiversity staff to help out with answering questions for calculus 1.
My long-term hope is to have PlanetMath provide free online access to the entire mathematics curriculum. If there is really a good solution for learning Calc 1 online, I think Wikiversity should definitely get behind it! PlanetMath doesn't yet provide the equivalent of even that one basic course, or even more basic courses like Algebra. ATM, PlanetMath is just a reference and discussion site.