Speaking during a conference call discussing the company’s Q1 2011 results, Verizon Wireless CFO Fran Shammo hinted that the next iPhone will be a “world phone,” capable of running on both CDMA and GSM networks, according to a Barron’s report. When asked about the Average Revenue Per User (APRU) growth of 2.2 percent in Q1, compared to growth of 2.5 percent in the prior quarter, Shammo replied, “[t]he fluctuation, I believe,…