Even before Verizon (VZ +0.3%) unveils its rumored iPhone (AAPL +1.3%), AT&T (T -1.5%) is...

|By:, SA News Editor

Even before Verizon (VZ +0.3%) unveils its rumored iPhone (AAPL +1.3%), AT&T (T -1.5%) is already launching an assault on it. AT&T says Verizon's CDMA technology is slower than AT&T's GSM network. "The iPhone is built for speed, but that's not what you get with a CDMA phone," says an AT&T spokesman.