My favorite announcement wasn't an announcement at all. It was 'The Demo.' The skydivers wearing glass doing a live hangout while the guys on top of moscone center beamed the wifis at them w/ the big handheld sattelite dishes. Then the big handoff to the bmx dudes who did the awesome backflips over the buildings etc to the guys who repelled down the side of the building and then came riding up into the keynote. That demo was just amazing, it could have gone wrong 18 different ways, but went off w/out a hitch, that was freaking impressive.