The selection of devices to show off in the Samsung booth at this year's CTIA Enterprise & Applications is a bit meager when compared to previous shows, but we hunted down a pearl: the Samsung Stratosphere. The newest addition to Verizon's LTE lineup is also by far the most unique of the bunch, simply due to its physical QWERTY slide-out keyboard. In fact, you're apt to find a hefty number of similarities between the Stratosphere and last year's Epic 4G, as both devices come with 4-inch Super AMOLED displays, 1GHz Hum