View this article at: http://dev.macnn.com/articles/07/07/13/iphone.typing.speed Friday, Jul 13, 2007 12:20pm iPhone typing faster than c... Consulting firm User Centric has published a summary of the initial results of its iPhone customer study, revealing that iPhone users were generally more productive with the iPhone's keyboard when composing text messages after one week than they were using previously owned phones. One portion of the study designed to identify overall ease-of-use factors and general usability issues among motivated early iPhone adopters who had experience with the device during the first week of ownership revealed that, overall, participants were initially satisfied with visual voicemail, selecting and playing music, saving contacts, and making as well as receiving calls while using other options. Frustrations arose however with regard to text entry SMS, the Google map feature, and the Web browsing experience. Six days after the iPhone launched, 60-minute usability sessions with actual iPhone customers showed vast improvement with device's the touch-screen keyboard.