This just in...
Neil Gaiman is a massive fanboy geek and must be completely adored.
Here we see the man himself grinning like an eight-year-old on the set of the Tardis:
"I did the sort of things writers love to do which are normally frowned upon. Like stealing a TARDIS and head off across the infinite vastness of Time and Space battling evil wherever it occurs...Sorry. Did I say that out loud? I meant, take a picture of myself on the TARDIS set."
Also, GNeil and PTerry definitely seem to be Up to Something. This can only bode well...a very Good Omen indeed, methinks.
"From one old friend to another: Terry Pratchett and I met for Sushi in Cardiff the following evening, for Mysterious Reasons That We Are Not Announcing Yet. This is a photograph of us toasting Something Unexplained with champagne."
Finally, a site which strikes me as a very good idea: female gazing, the Neil Gaiman edition...including this rather fetching picture of our intrepid author in younger days, looking incredibly comfortable.
His endearingly British reaction, on Twitter: "I am amazed & know not what to say."
Q
Psst...Neil! I think the phrase you're looking for there is, "you're welcome".