For $17, this lens should not be passed up. It can be used on most pocket-sized video cameras and iPhones. It comes with a small adhesive magnetic ring that you stick onto the lens of your camera, and the Flisheye magnetically sticks right to that ring. It is actually a pretty strong bond, it would take a fairly powerful jolt for it to fall off. I definitely recommend the Flisheye for any pocket-sized video camera.
I bought mine here, which is located in Hong Kong. It took a little over a week to ship.