Sprint has updated the company’s website to officially include the Samsung Galaxy Nexus and LG Viper, the Now Network’s first two 4G LTE smartphones. The details around the Galaxy Nexus are slim, with Sprint only indicating that the device features 16GB of internal storage and will include Google Wallet, a feature not found on Verizon’s variant, though we’re guessing there aren’t many other differences between Verizon’s handset and the HSPA+ version. The LG Viper is the second LTE device announced, and it features a 4-inch WVGA display with a 1.2GHz dual-core processor and a 5-megapixel rear camera. The Viper comes with an NFC chip and will come with Google Wallet, while running Android 2.3 Gingerbread. Sprint’s LTE network is expected to launch in mid-2012 in San Antonio, Houston, Dallas, and Atlanta.