I read somewhere I don't have time to google now, that Steve and Woz had a falling out. In the keynote, there was a photo of Steve and Woz, and then Steve told that Woz story about their pranks, giving most of the credit to Woz. (Something that's been disagreement about in the past.) Then, on the way down to the showfloor, I caught Woz on a segway, looking very happy. Steve and Woz, BFF!
PS, bonus shots of Steve looking happy, hugging children, and being a saint, after the jump.
Macworld Keynote 2007 [Gizmodo]