Sprint and Sierra Wireless have teamed up to bring in what is said to be first ever device that combines 4G connections over LTE and WiMAX networks in the form of the Sierra Wireless 4G LTE Tri-Fi Hotspot. Running on the Sprint network, said hotspot device will provide you with the speed and coverage in preparation for the soon to be rolled out Sprint 4G LTE network. The Sierra Wireless Tri-Fi Hotspot retails for $99.99 after a $50 mail-in rebate and comes with a two-year service agreement. Starting May 18, you can buy the device and then sign up for 3G/4G plans from Sprint retail stores. The various data plans available for your choosing include $34.99 for 3GB of combined 3G/4G data, $49.99 with 6GB of combined 3G/4G data and $79.99 with 12GB of 3G/4G data. According to Sprint, these plans deliver 20% more data for the same price as AT&T and Verizon. The Sierra Wireless Tri-Fi Hotspot allows up to 8 Wi-Fi enabled devices to be connected at the same time. It also comes packed with microSD slot that will let you share files and presentations with network storage and can also be used as digital media server. The release of the hotspot device happens just in time for the expected roll-out of Sprint 4G LTE network starting mid-year of 2012.