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Steve Jobs biography comes to Kindle early

Kindle users who preordered the Walter Isaacson biography noticed it turning up on their devices ahead of schedule.

Kindle users who preordered the Steve Jobs biography might want to fire up that e-reader ASAP.

Not long after that iconic ticking wrapped up an episode of CBS' "60 Minutes" featuring a preview of Steve Jobs' authorized biography with its author, Walter Isaacson, word broke that the Amazon Kindle version of the book was being delivered a little early.

Yes, the book is supposed to be released tomorrow anyway, and it's already tomorrow in much of the world, but Kindle users reported receiving their digital preordered copy a little ahead of schedule this evening.

This Twitter user in Florida got his a few hours before midnight, Eastern time.

Screenshot by Eric Mack/CNET

The 656-page biography provides plenty of new information, from Jobs' family life and admiration of Mark Zuckerberg to the story of his secret liver transplant.

"Steve Jobs" is available at a steep discount on Kindle--$16.99 instead of the $35 list price for a hardcover copy. It is currently No. 2 on the list of bestsellers in the Kindle store, with 21 days in the top 100 despite only being available for preorder.

Update, 9:40 p.m. PT: As if directly responding to Amazon, the Jobs biography became available via iTunes a little bit early, too.