I am an avid photographer. I have a digital SLR camera and know enough about it to be dangerous. Same goes for PhotoShop but the iPhone 4 has really revolutionized things for me. I use it exclusively in place of my former pocket camera and it is my only current means of videotaping. Tack on some of the cool apps like Hipstamatic or Instagram, and I am a full fledged junkie. So I was more than pleased when I saw that the next issue of Martha Stewart's Every Day Food will feature a photo spread taken with an iPhone.