mobile - Although it looks a lot like a calculator you'd get for free by opening a bank account, the Samsung SGH-P300 can do a lot more than just help you balance your checkbook. Sure, it has a calculator, but inside the small if somewhat plain package, you'll also find a feature-rich GSM cell phone that delivers admirable performance. Granted, the SGH-P300's credit card-size form factor does have its drawbacks--the button layout is odd, there's no external memory slot, and audio quality fluctuates--but with Bluetooth, a megapixel camera, and an MP3 player, Samsung made a serious effort to cram as much as it could into this insanely tiny handset. The SGH-P300 won't be for everyone, and the lack of a supporting U.S. carrier will mean a high price (around $550 on Dynamism.com), but for the cell phone fanatic, it could dethrone the Motorola Razr as an it phone.