Verizon Wireless CFO Fran Shammo said that the company plans to move all 3G customers with grandfathered unlimited data plans to its new shared data plans when they become available. Verizon will introduce its shared data plans later this summer, though pricing has yet to be discussed. Shammo said that as 3G customers with $30 monthly unlimited plans upgrade to 4G plans, they will have to sign up for the shared data plans. Verizon hopes this will help boost the adoption of multiple devices. "If I can add as many devices as I want, that is more efficient from a family perspective and a small business perspective," said Shammo. AT&T is also preparing to launch shared data plans later this year.