You don’t need to apologize for calling it Web 3.0. Of course the Web does not upgrade in one go like a company switching to Vista. But there is a definite phase transition from current technologies. My personal Web 3.0 definition is “the combination of Web 2.0 mass collaboration with structured databases”.
A. Ankolekar, M. Krötzsch, T. Tran, und D. Vrandecic. WWW '07: Proceedings of the 16th international conference on World Wide Web, Seite 825--834. New York, NY, USA, ACM Press, (2007)