Opposition to AT&T's proposed takeover of T-Mobile galvanized Monday after Cellular South sued AT&T to stop the deal. The dispute contends that the merger would "substantially lessen competition" and put too much power in the hands of the top two US carriers, AT&T and Verizon. In a statement, it shared Sprint's view that the deal would hurt access to the best devices, hike prices, and hurt roaming deals.
