I don't love the idea that someone might be so disinterested in their own crowdfunding campaign to have to launch it from a smartphone, rather than spending the time to do it from a proper computer.
While this behavior may not exist yet, I see a future where this app enables people to make much stronger statements about change they would like to see and gives them a dead simple way to contribute to those changes (plus all the fun spontaneous social stuff :).
Check this (currently live) campaign out: a community in Oakland feels unsafe in their neighborhood and isn't being helped out by the local PD, so they're pooling funds together for private security: https://www.crowdtilt.com/campaigns/security-patrol-for-lowe...
I doubt any large-scale public campaign would be started from a phone.