Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8B117 Safari/6531.22.7) I predict that a disk will not be required to install Os x lion. Why would superdrives get pulled from the shelves for a simple hardware update? I doubt the optical drives would be incompatible. Streaming keynote, hd video distribution, apple is equipped to do this. Not to mention their intentions of being 'green'. Someone prove me wrong.