While the product is cool, it seems that you are trying to solve a problem that doesn't exist.

Try and discover what your customer needs. Interview some software foundations and ask what their their biggest pains are. Ask where they spend the most time outside of development. In what areas do they struggle? Communication with members? Getting donations? Processing donations? Getting committed members?

I'm guessing that getting donations is their biggest problem. Getting paid is as easy as setting up a paypal button these days. I'd guess open source software devs struggle with marketing/advertising rather than technical platforms. :)