If you are looking for a way to make Steve Jobsi WWDC keynote a little more interactive, how about a little game of bingo? WWDC Bingo lets you play along as the keynote progresses. It features a randomly generated bingo card with possible keynote events that you can check off as they happen. The first to get five in a row wins. WWDC Keynote Bingo is free, and available for download here.
My money is on black turtle neck and jeans.