Hi Tom,
We are currently testing the evaluation for just that purpose. We don't want to purchase a number of copies to find out it does not work as we intend to use it. Does the evaluation not have the full functionality (PGPDesktop10.2.1MP3.dmg)?
LICENSE KEY FOR -PGP Desktop Corporate 10.1 Win Per Device, Trial License
We do not want to employ a server level function, each desktop would manage it's own keys and be independent.