T-Mobile USA is opening up its new cellular broadband network to laptops for the first time, with Wednesday’s launch of a USB “dongle” that lets portable computers get wireless Internet access. The plug-in device costs $50 with a two-year contract, or $100 if the buyer is signing up for one year. From then, service costs $60 per month for up to 5 gigabytes of traffic. The prices are similar to those at the three larger cellular carriers. T-Mobile is playing catch-up to Verizon Wireless, AT&T and Sprint Nextel when it comes to building out a 3G data network.
