I guess, but I think there would be more to it. It would have an interface that is similar to humble bundle's and would have a "thermometer" widget to show how much money was needed to fund a project (thus making it free). Unlike kickstarter, people are not necessarily buying stock into the product, they are making a contribution (I'm not a lawyer). Perhaps there could be some more incentivizations such as a reward for being the person to "release" the program via your contribution.
