One note: Syncrosoft keeps running when the dongle is switched out, but to load any new VI sound, the key is queried again and must be re-attached.
I looked into this several months ago when the golden apple was multiple EXS instances on two computers without buying another Logic license. And that didn't work at all because Logic constantly monitors the status of the key.
As Christian mentioned, these devices don't "share," they switch. This protects two printers from downloading information at the same time. So I looked for USB devices that keep connections "live" to multiple computers simultaneously, and that was a dead-end.
But jbm, it remains an intriguing thought. "Auto printer mode supports First Come First Served." Does this mean that a VI key would be "live" to whichever computer needed it (when loading, for example)? The web page indicates that special printers speak this language. What would a VI key do?
Perhaps this could be test-run more easily with a cheap, simple USB switch, like a two-port Belkin. And really, all the switch does is spare one the physical task of swapping the key -- which, with USB extension cords, could be pretty easy.
But I am concerned that, if it's this easy and viable, why has it not been discussed before? Why wasn't it a sidebar in gear magazine or at least a thread on one of the forums? I'm not saying it can't be done. I'm just voicing a curiosity.