As promised, the Acer Iconia Tab A501 is hitting AT&T just before summer draws to an official close. The carrier just announced it'll start selling the 16GB model next Sunday, September 18th for $480 -- or $330 with a two-year contract. When we first heard about this way back in March, we knew it would be a "4G" device, and today AT&T clarified that this means HSPA+, not LTE, so sorry to burst anyone's bubble. Even so, five months after the A500 went on sale it remains one of a select few slates with a full-sized U
