According to WSJ, Apple is currently "developing a new iPhone to debut this summer," and as if that weren't enough, it's also "working on another model for US mobile phone operator Verizon Wireless." The new iPhone would work on a type of wireless network called CDMA, these people said. CDMA is used by Verizon, AT&T's main competitor, as well as Sprint Nextel and a handful of cellular operators in countries including South Korea and Japan. Vast majority of carriers world-wide, including AT&T, use another technology called GSM. Verizon Wireless, owned by Verizon Communications and Vodafone Group PLC, declined to comment. An AT&T spokesman said: "There has been lots of incorrect speculation on CDMA iPhones for a long time. We haven't seen one yet and only Apple knows when that might occur." Apple declined to comment. One person familiar with the situation said Pegatron is scheduled to start mass producing CDMA iPhones in Sep. Other people said, however, that schedule could change and phone mayn't be available to consumers immediately after production begins. There's also been no shortage of iPhone-to-Verizon rumors over years, with latest of 'em happening during the run-up to the iPad's launch.