LEAP, PCS Slide as Wal-Mart Offers Cheap Prepaid Wireless Plans

The already intensively competitive wireless sector today finds itself with a tough new player: Wal-Mart. The retailing giant has teamed up with American Movil to sell low-cost service under the Straight Talk brand. The company is offering unlimited voice and text minutes for $45 a month, or 1,000 minutes and 1,000 text messages for $30 a month.