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by nickcharlton 5649 days ago
...with code: "DDHPT"[1].

[1]: https://twitter.com/#!/oreillymedia/status/21836062456283136
1 comments
jaekwon 5649 days ago
FYI this appears to be for the ebook edition.
link
nickcharlton 5649 days ago
Indeed. They do something similar everday weekday.
link