Maybe I'm wrong but it looks like Andrew is taking an old interview, converting it into an eBook, adding the interviewee as an "author", and selling it?
I'm probably being overly cynical, but I'd love to see either Mr. Warner or PG clarify that separate permission was granted for this ;(
Hyperink, the publisher, is a YC company, which may have been part of PG's incentive for doing it.
I do think he tends to push the boundries of what's socially acceptable somewhat, which is why I'm questioning. I'm sure I just have a somewhat cynical perspective, forgive me.
I'd still love to see it stated on-the-record, as it were, however.
His reputation in this business is worth way more than he could ever generate selling an e-book.
I respect Andrew's work enough to know he did his diligence before-hand. Namely, working with and having PG's permission.