Did you know that Neil Gaiman wrote a two part Batman special? It's called Whatever Happened to the Caped Crusader?, and starts at issue 686. It's coming out very soon, and a few pages have been put online at MySpace as a preview.
I'm a life-long Batman fan, and I've been a Neil Gaiman fan since I read the first issue of Sandman the day it went on sale. American Gods remains one of my all-time favorite books, and I loved Coraline so much, I devoured it in about 3 hours, pausing only when stupid real life demanded my interaction.
I sort of know Neil, since he wrote the introduction to my book Just A Geek, so last week he sent me a preview of the first part of his two-parter. (via a DM on Twitter. I know, right?! I love living in the future.)
I can't get into any specifics, but I can say that it has the same "wow, this is just phenomenal" feeling as Killing Joke or The Man Who Laughs. Andy Kubert's art is brilliant and Neil's story and dialog are fantastic. Speaking as a fan of Neil's work and a Batman fan, it was very satisfying, and I can't wait to see what happens in the second part.