To what extent does using Enterprise 2.0 tools increase the competitive advantage?

I swear I am getting a gray hair every time I come across an organization that uses email to share knowledge and collaborate on documents.

In the year 2011 there are so many tools that facilitate creativity and enable people to work together. It really seems just a matter of time until the transition to Enterprise 2.0 will be here.  But, at the same time, many organizations out there are still living in the early 2000’s or even 1990's. The model of operation is shifting. The question is: to what extent does using Enterprise 2.0 tools increase the competitive advantage?

Comments are welcome.

See this Amp at http://amplify.com/u/bqif0