The iPhone 4S became the world’s most popular digital camera. Now, the Gizmon iCA case gives Nikon one more reason to cry itself to sleep at night. This polycarbonate case protects your iPhone but also converts it into a retro rangefinder, with optical viewfinder, shutter button, tripod mount and even a hotshoe for flash. Also available are fisheye and macro lenses.
$65 from amazon.com. Info at gizmon.com.