Divide_By_Zero: I'm not sure what your credentials are to judge the difficulty of transferring different features between the different projects are. Keep in mind that they are being developed in different studios, with VBS coming from BIA. Fundamental code can be different and represent a challenge in moving features over.
Also, its not like the the US Armed forces could just jump over to Arma if they felt like that would give them more realism. VBS is about much more than cool features like body armor and Javelin simulation. Its about delivering a complete package of training formed around the needs of the soldier.
We all want more shared features between VBS and Arma, but its more realistic to think that the potential of work in implementing features into Arma is being weighted up against what would make the game sell more in the mainstream market(which is BIs focus, as they are already selling well in the hardcore market).
These are different products intended for different uses, unlike the variation of CPUs in your example, which is intended for the same use.
Edited by sparks50 (06/02/12 12:28 PM)