They may call it a wireless phone, but cell phones still require wires at some point. Besides the clunky charger, you have to fumble with cords to use a headset and to transfer data between your mobile and other gadgets. But there is an answer for anyone looking to cut the cord almost completely. With a Bluetooth-equipped cell phone, you can chat on a wireless headset, transfer data magically through the air to a handheld, or connect with a Bluetooth-enabled car. But take care, as not all Bluetooth is created the same. While some carriers let you use Bluetooth for almost any means, others restrict it to a headset only. Sprint was relatively late to the Bluetooth game, but the company's stable now includes the PPC-6700 smart phone and the slim Samsung MM-A900. Cingular boasts the 3G-equipped LG CU320 and the lower-end Sony Ericsson Z520. T-Mobile offers the sexy Motorola Pebl, while Verizon has the Samsung SCH-A950 music phone.