Clarifi’s built-in lens gives your iPhone a boost in camera resolution.

Slide the Clarifi lens into place over the built-in lens of your iPhone. Your macro and close-up shots are instantly finer in detail, more accurate in color. With Clarifi’s lens, your iPhone can image an entire business card with astounding clarity. Slide the lens aside for normal photography. WIthout Clarifi, iPhone requires about 18 inches to focus properly. Slide Clarifi’s lens into place and you can move in to 4 inches for crisp detail and great pictures.

There are some fairly intuitive home security creation in our day but this one is an impressive project. This DIY project hacks a standard handset, using a Picaxe microcontroller that allows you to control a camera phone through SMS message.