Filed under: NetworkingA new study published by the Nemertes Research Group indicates that demand for bandwidth will outstrip capacity by 2010 -- and that planned infrastructure upgrades will fall some 60-70 percent short of making up the difference. Using a model it claims anticipates the next bandwidth-consuming innovation, Nemertes says that carriers and other infrastructure providers will have to spend at least an additional $42B over the estimated $72B it estimates is currently budgeted to prevent the bandwidth crunch from taking place -- but we're a little unclear on where those numbers are coming from, so don't start running your cable modem on ov