Starting March 1, unlimited access to the wireless networks will cost $30 a month, down from $40. T-Mobile will also slash the price of a "day use pass" to $6, which allows access for 24 hours inside any of about 1,200 wireless Starbucks. More changes are on the horizon, T-Mobile director Frank Ramirez said at Thursday's Eyeforwireless Mixed Wireless Conference.
