Sprint's 4G LTE isn't available just yet, but that's not stopping the carrier from releasing new LTE-capable handsets.  Aaron reviews the LG Viper 4G LTE, Sprint's mid-range offering.  Coming in at $99.99, Viper offers a 1.2 GHz dual-core Snapdragon S3 CPU, 4-inch display (480x800 pixels), 5-megapixel camera with 1080p HD video recording, a front-facing camera, NFC for apps like Google Wallet, a 1,700 mAh battery, and Android 2.3 (Gingerbread).  If you want or need a better camera and larger HD display, go with the HTC EVO 4G LTE.  Otherwise, Viper 4G LTE is a solid smartphone for $99.99 on contract.  Part 1 of 2.