I resent the way Facebook treats third-party developers, but my early dread has turned into a little excitement over what this could do for soft-touch demos. Ri

I resent the way Facebook treats third-party developers, but my early dread has turned into a little excitement over what this could do for soft-touch demos. Right now most product pitches are short videos on the landing page that walk you through the features, but that's a poor substitute for actually logging in and poking around. If you build the anonymous login experience the right way, you cut through the newsletter and transactional email noise from all the people who signup just to try it out, and you just get to communicate with people who actually want to use your product. There's room for both sides to win: users don't have to listen to things they're not interested in, and companies don't have to waste resources on people who aren't listening. It's also easier to sell a signup when you've got someone in a product they like but can restrict access until they commit. Want to upload a photo? Create an account with Facebook. Want to save your work? Create an account with Facebook. If you're just an anonymous user, you get the same dummy-data experience as logging in with a demo account until you commit and share your email.