Here's some HuffPo follow-up:
Mortenson's books never set off my, seriously? Seriously? No, really, seriously?!? meter the way some other memoirs have. OTOH, I have never actually picked up either book and flipped through one, much less read one. I have no idea if this should have been obvious to people or not.
The math in the HuffPo article, however, is faintly amazing and I do have to wonder if this might all lead to some kind of legal action at some point.
ETA: Byliner has a long piece by Krakauer on the subject.
ETAYA: Definitely recommend the Byliner piece, which will also be released as a kindle short. Krakauer does great non-fiction, and this is no exception.