RAM Elements will soon link to Revit through Bentley Integrated Structural Modeling. At the heart of it is a component called the Structural Synchronizer. This intermediate database will handle changes to files and allow two-way links to several applications.
The programs that will link to the Structural Synchronizer first release are:
Ram Elements
Ram Concept
Bentley Structural (soon to be renamed Structural Modeler)
Revit (Architectural, or Structural, 2009 or 2010 versions)
Those programs (other than Revit) should all have updates available before the end of the year with this functionality, mostly bi-directional.
If you want to read more, check out this topic (it's a work in progress):