While completing my master's this term came up often. Questions like: How are you you going to adapt to the new ideas?; What are you going to do to make sure you are still needed?; and What training are you doing for technology?
In my opinion, the printed word will be around forever, just not in the same way. Just like going from scrolls to paper, we are know going to go from paper to e-readers. Just because we are going to do this does not mean that we, as librarians, are going to become obsolete. But we have to make sure we change with the times.
Technology is apart of the Library 2.0 but it is not the only part. We need make sure we are there to support Web 2.0 and all of its facets, but we also need to teach the patrons how to explore the tools.
I had a professor in my undergrad work say that we all needed to be like a willow tree and bend and sway with the changes. I believe that is what a Library 2.0 is a place that bends and sways with the times.