I just recieved word that my book is going to be reprinted. So if you want a 'first edition', better run to the stores now. :)
It's a small second run, so they aren't making very many changes. The only thing I'm aware of is fixing a small error we found after the first one printed. If you've read the book, you'll notice that all of the chapters have a name except for the last one. So if you ever want to tell the difference between the first edition and the second, look to the last chapter and see if it has a title.