I think it matters quite a lot when it claims to be a factual book. How can it be taken seriously when some things have been proven to be untrue?
Rupert Everett claims that he knows the identity of the mystery older woman in the loss of virginity/bottom spanking chapter, and that what Harry says is inaccurate, but I don't know how he can say that unless he was hiding behind a bush and watching.
My understanding is that the woman in question told Rupert Everett the details of her encounter with Prince Harry and that her story doesn't match Harry's. If that is the case, however, it is impossible to say whose version is the accurate one. From what I read though, Rupert Everett seems pretty sure that Harry's account of the facts is incorrect.
Well, the Sun run with the story for their front page; headline of "I Took Harry's Virginity" and photo of Sasha Walpole and Harry, so it seems we have name now ....
Seriously, I still can't fathom why he needs to flaunt his genitalia in this book. One might start to wonder whether he's a closeted exhibitionist.