It took a while for the third volume of this book to come out, but it is very exciting to see it on sale, and the fourth and final volume should take much less time. I hope to do a podcast with Dan, who provided all the art for this book as usual, sometime soon. You can find volume 3 of the Field Guide at RPGNow.
There's only one volume left; we have the last ten archetypes to cover and I am starting on that project tomorrow. With any luck, the entire Field Guide will be out by GenCon, and then I can start on the M&M 3rd edition version and the Field Guide to Super Villains.
Which should be very useful to everyone, since you can never have too many villains.