PG suggested having the balls to disrupt Google Search itself, by building a new search platform, only for the top 10,000 über-geeks in tech. PG believes done properly, this will scale a new search engine, which he thinks is woefully needed.
That's what Dalton's doing, except to Facebook and Twitter. Responding to PG's call to be bold. And he's nailing it.
Right now, the App.net ecosystem is 10,000+ of the tech's finest minds. It feels like a private Path network, with private access to many of the top minds in tech. A myriad of heavyweight tech talent are in their voicing their support, struggling to fix social.
It's a great place to read tech. It's one of the best geek parties on earth. Twitter has lost the ability to do that "intimately for a small conference of 10,000 advanced minds".
By the way - App.net is not Twitter. The core blackbox (App.net) is an engine to build any construct upon, including (but not limited to) Twitter innovation.
The current client, a 'referential implementation' (which looks like Twitter ... Orian calls it Alpha) is only a proof of concept by Dalton, to show one excellent construct on top of the broader App.net engine.
I think Dalton has nailed PG's challenge, and innovators want in on the fun.