I really don't understand the obsession with saving meshes in the 3dm file. Whats wrong with using one of the various export options MOI provides. Don't tell me that it's because the iPhone or the iPad can't read them. That's Apple's problem, not Michael's. The mesh data that Rhino saves is not meant to be extracted anyway. It is internal for Rhino's screen renderer and is not very good (no n-gons, no point welding, etc) for use in anything else.