i'm told that the 600 will need to be installed by a certified installer. if you are not certified, then you will not be able to gain a registration key to unlock a card/system.
pana are doing this to stop all the problems they had with uncertified techs working on the 500.
i suppose this will keep us in our jobs longer, and also cut out half the problems we had with the 500 that were caused by clowns that didn't know what they were doing.