Samsung today announced that they have sold more than 550,000 units of its Yu-Na Haptic or SCH-W770/SPH-W7700/W7750 (depending on operator). This feat comes in just under 80 days of its launch and is one of the fastest selling phones for Samsung. The Yu-Na Haptic phone features a 3-inch touchscreen display, 3MP camera, Bluetooth, DMB, […]