while I do not approve of Apple's position as such, I might point out that the crossgrade offer was a limited time one, made clear at it's inception, and extended twice, before apple decided to let it die at the previously stated 3rd expiry date... although some stock remained until shortly afterwards.
it is NOT out of the blue, NOT without prior notice or warning.
they continued to stock and sell it until long past any legal obligations relating to the sale of V7.1 editions were fulfilled.
personally I'm not enthused by it... but the jumping up and down and screaming about it is just a bit much.
I regret their decision.... sadly, i have frequently despised their management decisions....
but that does not give anyone the right to abuse the legalities of IP and EULA nor offer support for such activities.
if you don't know who i am, i aint gonna tell you.