HTC has been on a relentless tear through 2011, releasing new, faster (or bigger) phones seemingly every month, but it has never truly cracked AT&T: even phones like the Inspire 4G are outsold by the cheapest iPhones. With that in mind, the Vivid (known as the Raider elsewhere) is theoretically a powerhouse: 4G LTE, a dual-core 1.2GHz processor, and a massive 4.5-inch screen. But are sheer numbe
