So do I have to pay another $30 for the second download of Lion?
Me
thinks not. Somehow your account at MAS should retain the record that "you" are allowed to own Lion (on any Mac
duly linked to that account)... ad infinitum.
I think that I've already read that if I have a number of Lion capable physical devices bought from Apple in my name, the one payment of $30 covers downloads of "OS X Lion" (note the changed name) on up to and including five of those devices. But does that mean that I get five downloads (or even two) of Lion on my one and only Lion capable device for $30?
Again, that's not my read of the situation. I
think that "all" Macs linked to that particular iTunes/MAS authorization account are allowed to be Lionized. IOW, it's not as much about selling OS software as it used to be. So —once you've purchased Lion for $30 —if you want to go out and buy 100 Snow Macs and put Lion on them... then go for it,
freely. (unlike Microsoft, Apple's cash cow is hardware sales). Have fun authorizing and downloading those 100 upgrades BTW.
I think that's true for the OS... but maybe not for suites like iWork.
But honestly... idunno yet.