We were wowed by the iPhone from the start. We put it on our cover after its unveiling and wrote that Steve Jobs "made a wake-up call from a phone that doesn't exist," since you couldn't buy one for six months. We knew from people's euphoric reaction that it would force IT to get more serious about mobile computing. But we grossly underestimated how Apple would ride the bring-your-own-device movement and make iPhones a mainstream business tool. We quoted one IT leader who said that giving employees an iPhone was like giving them a PlayStation. We acknowledged some top execs would bring them to work and demand to use them, but we didn't see BYOD going way beyond that to include swaths of employees. The "app for that" ecosystem? We didn't see that coming, either. So we left readers with this gem: "There's reason to suspect the iPhone's business impact could be similar to the Mac computer's: much admired, indispensable for visually intensive niches, but not the mass-market tool on which companies run."