Using an iPhone for just a little over a year now has changed my behavior in a few subtle ways. I almost never check personal email at my desktop, I have less fear of the DMV, and my peripheral vision while walking has improved greatly thanks to a few notable, non-fatal incidents. I also tend to take certain attributes of the iPhone’s touchscreen for granted. I sometimes forget that not every pretty image on a shiny screen can zoom in and out with a pinch or pull of my thumb and forefinger.