I do not really see why people are so pissed about the blue ray ...
Yes it kinda sucks not having any media device on the computer, but the 8x double-layer SuperDrive (DVD±R DL/DVD±RW/CD-RW) was not even all that great of drive to begin with that apple used on the previous iMacs. Seeing how Apple has been operating lately, if they went the blue ray route it would of been lower, maybe middle, of the road quality.
So why not save the probably $200 extra Apple would of charged and go buy a good external one that reads and writes twice as what Apple would of most likely used. If you are worried about storage space, I am sure you keep plenty of other bigger crap around that you never use that you could get rid of.
I would be, and am, more pissed with the GPU/CPU selection they have gone with for the 27" models.
..... so with that said ... Why are people ready to go in with pitchforks to Apple headquarters? Don't tell me thinness is evil and its a desktop - thinness doesnt matter. just ask PC users how much fun it is to make space for a huge tower and a huge screen. (that is why I am getting an iMac, to save on desk area realestate) So minus thinness is evil argument - what else there?