Chris Pirillo: "Your favorite “Web 2.0″ (the ethereal movement) applications are still walled gardens – to the nth degree. Web 2.0, the conference, belongs to O’Reilly and CMP. Web 2.0, the ethereal movement, doesn’t exist."

I like some of the ideas affiliated with Web 2.0 although not so much the term. Chris is right now- the Web 2.0 apps are shinier versions of the old stuff with some crufty data feeds and hacked up integration points. Certainly not too much to crow about, and certainly not a real industry movement (from a technology perspective that is).