Apple might have had incentive from its own iPhone users' backup habits to develop iCloud, a new tip from the company's retail stores suggests. About half of all those who get their phones replaced reportedly don't physically link to iTunes beyond the initial iTunes activation, which they might not have even done themselves if they bought at a store. Store Geniuses talking to David Chartier were eager for iCloud since it meant they no longer had to tell customers that they'd lost months or years of valuable data.