I’ve given in. Had to see what all the fuss about Facebook Applications is about. I’ve signed up for a Facebook account.
Just installed the WordPress FB app, using it to write and post this from within Facebook.
The thing that impresses me most (even more than the development API) is the ease of adding applications. What makes it easy is the single sign-on experience offered by Facebook (including sharing profile, contacts and “events” if I so wish). MS .NET Passport must be spinning in its grave and OpenId likewise in its cradle.