Filed under: Wireless, NetworkingThe WiMAX train is starting to pick up steam -- and with services like Sprint's XOHM scheduled to launch in the next year, we're expecting to see a lot more devices like Motorola's CPEi 300 WiMAX modem hit shelves. The company is showing off the wireless broadband modem at the WiMAX World conference in Chicago this week, and seems bullish about targeting the "unserved or underserved" with the device. The unit features