I was sure the Facebook Platform would take over the world. I thought the fast success of Zynga would create a blueprint for all web apps would be built in the future
hmm that's an interesting thought. I have no explanation for it either. My best suggestion for why this didn't happen was the world went mobile and the Android/Apple app store then become the platforms because of the install base and the tighter integration. Facebook (and msft of course) really, really, really fumbled mobile. Not news to anyone but i never thought of it in this context.
In fact, i believe even today there's an opportunity for a social network for silly games. its a great way to make random new friends.