Sprint (S +2.5%) CEO Dan Hesse says he believes that AT&T's (T -0.6%) plan to take over T-Mobile (OTCQX:DTEGY) would stifle innovation and hurt consumers. He gets support from consumer groups who worry that the deal would effectively render Verizon (VZ) and AT&T a duopoly: "They can totally cream the other guys... for consumers, [prices] will go up."