Sprint has launched its WiMAX mobile network, called XOHM, in Baltimore. Sprint expects the 4G XOHM network to let wireless consumers experience new forms of interactive communications at average downlink speeds of two to four Mbps. Sprint will not require long-term contracts and XOHM customers can buy access by the day or month. XOHM extends home and office Internet connections and mobile multimedia applications in two ways. First, it lets wireless users log onto the Internet outside their four ...

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