Interesting article on theories and rumors about what Leopard's most top, Top Secret is.

Let's imagine that Steve Jobs wasn't kidding when he said he didn't want to show Leopard's Top Secret stuff at last year's WWDC. He wasn't merely having fun at Microsoft's expense knowing full well how close Vista was coming to the look (but not feel) of OS X. He was quite serious at playing his cards not just close to his vest, but playing a bet-the-house, put-up or shut-up game of poker.

Read linked article for the full deal....