Motorola believes the problem may lie in the marketing of the phone, with users expecting to get a device that has the storage capacity of the iPod. The Rokr phones will hold just 100 songs, a fraction of the number most stand-alone iPod devices will hold. The highly touted iTunes phone from Motorola and Apple is being returned at a much higher rate than is typical for new mobile phone handsets, leading some to speculate that Apple may have a rare iTunes-related flop on its hands. The Rokr phones, jointly marketed and built by Apple and Motorola, are being returned at six times the rate of typical mobile phone handsets, American Technology Research analyst Albert Lin reported after talking to distributors, retailers and call center workers at Cingular Wireless, which is the only U.S. carrier licensed to sell the phone.