"none of the copycat incubators have an alumni list or investment portfolio containing names such as Dropbox, Reddit, Clickpass, Posterous or Codecademy. I can't think of a better list."

Clickpass? Really? I could think of a better list containing just YC companies.

And how do Dropbox, AirBnB, Heroku, Weebly, Justin.tv, etc. lack vision?