[area51org]

It's a step toward evolution: Dropbox becoming a platform and not just a cloudy app. I wonder, though, about the amount of storage available at the free level -- is it enough to support a true platform?

[Selfcommit]

isn't dropbox built on top of amazon?

Isn't it a platform on a platform at that point?

[area51org]

Yes, but that doesn't mean it can't work and add value. Heroku is built on EC2, for example.