One of the fundamental precepts we laid out in the original Science 2.0® vision was collaboration. It's tricky stuff, collaboration, it requires scientists who are often competitors to other labs to be more open - and that may never happen, but for smaller groups who want it to happen, there are tools in the works that can help.
One of those, Mendeley, has come out of beta and released Mendeley Desktop v1.0 for Windows, Mac, and Linux, following two other milestones for the company, 1 million users who have now downloaded the application and a database with its 100 millionth paper uploaded.