Originally Posted by aegisdesign
Because it buys you 5 licences. I've never registered a copy of OSX. Skipped that stage at installation every time. Registration isn't mandatory, unlike Windows Activation. Bertrand even made a joke about Windows Activation during the keynote. If it's ok by Apple, then it's ok by me.
Only if you register each machine, which is the point to the whole thing. If you don't, then no license. If you are your own support, as I am, then you have no need of it. Apple's unofficial position is that while they would prefer you to license each machine you own, they will accept the fact that you will buy one copy for more than one, for the home, not for business, which, of course, is different.
But when you call for support, you must give them the number. I suppose you can fake it by giving the one that was registered, but if the problem on the other machine is machine specific, then support won't be able to help.
The point is, again, that this is a FAMILY pack license, friends living around the city can't use it with you, unless, as I said, Apple changed their stance on that.