K.O. Gadget’s incredibly cool glowing Apple logo mod for the iPhone 4 and 4S is currently available for $42.90 (originally $79.90) and will only be available for 30 more hours.

The mod doesn’t increase the thickness of the phone, and only requires a little bit of sticky tape and the cojones to open up your iPhone and void the warranty. Buyers even have the choice of using the traditional Apple logo or the Steve Job’s tribute logo by Jonathan Mak that replaces the Apple Bite with a silhouette of Jobs head. The hit your iPhone’s battery life will take is reportedly minimal too. Not a bad