The transcript from the trial has been released. Someone at FW posted this snippet:

21 Q. And what you say in that award is this is such a great site
22 that I have been known to sneak into an internet cafe while out
23 writing and check a fact rather than go into a book store and
24 by a copy of Harry Potter, which is embarrassing. A website
25 for the dangerously obsessive; my natural home.
1 That's your language, correct?
2 A. That's my language.
3 Q. That wasn't written by Mr. Vander Ark, was it?
4 A. Well, it probably will be at some point, but no, he hasn't
5 done it yet.

I admire the execution of snark from JKR.