Steve Jobs Writing an Autobiography?

Valleyway claims that Steve jobs may have started writing his autobiography.

"Steve Jobs has started writing a book," a plugged-in tipster tells me. It's the barest of rumors, but the book industry is already eagerly anticipating the Apple CEO's autobiography.

Jobs recently took leave from Apple due to medical reasons and expects to return in June.

In order to take myself out of the limelight and focus on my health, and to allow everyone at Apple to focus on delivering extraordinary products, I have decided to take a medical leave of absence until the end of June.

Valleywag has a pretty spotty history with Apple rumors, so it is difficult to read too much into this.