A while back, I tried traveling on business with nothing but the help of three smart phones. I quickly ran into the headroom of those devices and, by the time I was home, I had a huge list of tasks I needed to deal with that could only be done on a computer. I wondered how I would have fared had I carried an iPad with me instead. So over the last two weeks, I've done just that, carried an iPad on my travels and left the laptop at home. Here are ten lessons of the iPad I learned from two weeks on the road with it.