Silicon Alley Insider: Westheimer: Ballmer's Right--Facebook is a Fad

"On a large scale, Facebook and a few other top dogs may be the only ones who think it’s in their best interest to keep information closed. Everywhere else you turn, however, you’ll see people opening up. That means that the collective, open social graph will increase in value indefinitely, because it will be truly portable, while the little we’re actually investing in Facebook diminishes in value. Get one thing straight: tomorrow’s great platforms will be open. The next Facebook, Google, Bebo, whoever — they’ll all be open."