By Saul Hansell January 28, 2008 5:41 pm January 28, 2008 5:41 pm CORRECTED The Federal Communications Commission has stepped up the pace of its auction for the 700 Mhz wireless spectrum, holding four rounds of bidding Monday. This added $2.4 billion to the combined bids, which now total $6.1 billion. Monday’s round also gives a little clarity to the bidding landscape, even though the government i