It's seems like Bill Gates is still in shape and his sense of humour is the same as 20 years ago. He was Jimmy Fallon's guest last night, promoting his website, GatesLetter.com with the help of this little clip.
Here's the complete segment:
Did they remove Fallon's Macbook during Gates' visit? Don't worry, it was on his desk throughout the whole interview:
Here's the follow-up, where Gates talks about how interacting with computers will change in the future.
Bill Gates' Viral Video: GatesLetter.com [YouTube]