Last Thursday, Facebook announced that it was about to release an iPhone app called Paper. The app is now available from Apple’s App Store. If you use Facebook on an iPhone, you really need to try it.

That’s because the app — unlike other Facebook mobile efforts such as Messenger and the failed Snapchat knockoff Poke — isn’t a specialized tool or a side project. It’s Facebook — almost all of it, anyhow — rethought for a small screen, with 2014 aesthetics.

By calling it Paper and leaving the original Facebook app untouched in the App Store, the company smartly avoids leaving users feeling like radical, jarring change is being imposed upon them. But it’s hard to imagine that Mark Zuckerberg & Co. don’t see the ideas in this app as a first rough draft of Facebook’s future, period.

(Side note: For now, at least, I’m…