The New Millennium Research Council has bad news and good news for the cell phone industry.The bad: Millions of cell phone users in the United States may cut back or cancel their service altogether if the economy continues to tank (OK, they didn’t phrase it so bluntly, they said, “if the economic downturn continues as expected”).The good: Prepaid phone service could reap the benefits, because, after all, people will still need some sort of cell phone, particularly if they’re job-hunting. Maybe the Mississippi