Do you have a really difficult time holding onto your iPhone 4? Well for all of you butter fingers in the world whom own iPhone 4s one man has come up with the idea of replacing the smooth glass back of the iPhone 4 with skateboard grip tape. This may not seem like the brightest of ideas since grip tape can not only add grip to your iPhone, but it can also be very abrasive to the skin causing scratching. One thing for sure is that you probably won’t be dropping your iPhone 4 again. Unlike the inventor whom made the backing out of necessity since he broke the backing of his phone when he dropped it, you can purchase a laser cut out of the iPhone 4 grip tape for $5, a pretty cheap price that could prevent hundreds in phone repair costs.