Re: Not good news for the new iMac...
Don't get all giddy. Apple will deliver these new systems with the microcode already patched, you can be sure of that.
They don't have to. As soon as the user has done first setup it will run the update and pull in the relevant patches since production, update, possibly reboot and that will be that.
Sure, what is produced now (well, in a few days from now) may be supplied pre-patched already, but there's no point in opening up existing stock, that would be silly :). There is also the problem that something new may have shown up by then :)