PC World – No matter what carrier you’re on, you’ve likely encountered a cell phone dead zone. This is especially a burden while on the road if you’re lost in a rural area and have no way of calling for directions or accessing your GPS. Luckily, there’s a solution: The Wilson Sleek all-in-one cell phone signal booster. This handy gadget resembles a hands-free car cradle, but offers extended calling range and signal strength for your phone.