"As our users were starting to adopt Twitter on more than one platform...we realized we have to have a consistent owned and operated experience," Costolo told Rose. What "we tried to message the ecosystem is, there are all these value added services that we'd like you to start building that our customers and users are going to want...like large corporate accounts wanting customer relationship management software, and there are already thousands of Twitter clients, there aren't the need for lots of new clients. And that's the migration we've been continuing down."
Added Costolo, "The future of Twitter is that we'll have a true platform...not just an API that allows developers to create an alternate Twitter experience, but an API that allows third parties to build on top of Twitter in a way that creates accretive value for the user, much how Amazon allowed third-party merchants to build into Amazon."
I still have a hard time following a conversation thread on twitter.com. I don't see how the average person could either without 3rd party tools. The conversation is bound to move elsewhere if they continue in this vein.