I get that App.net is supposed about owning your own data, and sure there's a brief mention of PRISM at the top. But why I would want to write an app for it in

I get that App.net is supposed about owning your own data, and sure there's a brief mention of PRISM at the top. But why I would want to write an app for it in the era of PRISM? How can I trust this notion of a "private cloud?" What I'm looking for now is more decentralization and encryption than a walled garden.