From this very nice “best-of-2004” list and roundtable discussion:
Street Angel trade paperback — release date is June. We’re going to do a new, short story – sort of an issue zero, which takes place before the first issue of Street Angel. We’re going to have a pinup gallery by a number of cartoonists whose work I admire, a sketchbook section, more squids! I might try to do a little promo tour to support the book when it’s released but I don’t know for sure about that yet. We’ll see.
Translation: “Thanks for buying the single issues, suckers!”