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Bunny Huang has also written a fascinating book documenting how he reverse engineered the original XBOX, as a bit of fun to take his mind off his PhD. A truly fascinating read, and demonstrates this guy operates on a different level. Genius doesn't come close to describing the skill involved:
http://www.amazon.com/Hacking-Xbox-Introduction-Reverse-Engineering/dp/1593270291
E.g he needed to dump the comms going across the northbridge interface, the equipment to do this was several million dollars, so he builds his own out of spare parts.