With U.S. wireless penetration surpassing 91 percent, it's clear that wireless operators are going to have to become much more creative about attracting new customers. Although Verizon Wireless insists there is still some room to grow in postpaid (during the firm's first quarter 2010 earnings report, CFO John Killian told financial analysts the company believes there is still strength in postpaid), most U.S. operators are turning their attention to the prepaid side of the business.
