AT&T offers a growing selection of smartphones that taps into its superfast 4G LTE network, but the Pantech Burst breaks through by being the first that costs less than $50. This handset doesn't scream "cheap," either. The Burst boasts a bold Super AMOLED screen along with a dual-core processor. Plus, Pantech has added some software enhancements to Android that make the OS more user-friendly. Read on to find out whether this smartphone is as good a value as it seems.