Several weeks ago I heard about a book that was coming out about photo editing techniques with an iPhone. It arrived! iPhone Obsessed by Dan Marcolina literally arrived a few minutes ago. I've only had a chance to glance through it. It gives you step-by-step directions on how to use many iPhone photo apps for very interesting results. Incidentally, the very interesting is an understatement. They are great! I'm looking forward to going through the book in detail and reporting on some of the techniques. It's definitely worth getting!