Look out, Guinness. Samsung and wireless carrier Cricket have teamed to make the largest working cell phone, including a full QWERTY keyboard. The 15 x 13 ft. Messager phone, located at Fidelity Plaza in Chicago, really makes free phone calls and sends text messages. No doubt the publicity will sell plenty of the 4.4 x 2.0 x 0.7-inch normal-sized phones, which feature Bluetooth technology, an MP3 player and a 1.3 megapixel cam at a price of around $200.00.