[g0su]

What could happen is a great open source library that you could host yourself on a linode. So, it's "backend-less" in the sense that you don't have to do backend stuff, but you still have control over your databases. Seems like it's the way that spire took.. where you can use their services if you want, but you'll be able to host everything yourself because they open source mostly everything. Their challenge, a little bit like Github, is to make their service so awesome that you don't want to do everything yourself. I.e. On github you have visibility, issues, wiki, easy creation, multi-users, etc. out of the box.