Autodesk//Labs had release Etransmit for Revit Structure 2012.
http://labs.autodesk.com/utilities/revit_etransmit/
Common uses for eTransmit:
Internal archiving
Sending deliverables to clients
Model exchange between consultants/partners
Model cleanup
Sharing models between disciplines
Availability:
The technology preview will operate until December 31, 2011
For best results, installing Revit 2012 Web Update 1 is recommended
