Enabling something very similar to a Google documents concept, Avid Everywhere aims to give you the freedom to work with people all over the world just like you were in the same studio as them.
We saw an early version of this at NAMM last year, but since then, there's been a lot of work done to finesse the process. One interesting aspect is the concept of individual track sharing rather than the entire project, so you can bring in certain elements alone.
Much more than version management, indicators can tell you when something has been changed on project that has been worked on by your collaborator.
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State of the art for super-wide workflow enhancement