Sometimes, when people ask me how useful my iPad is (meaning: compared to a laptop), I’m at a bit of a loss. How do you measure the utility of taking a ten-minute break to dip into Fotopedia’s spread on the Alhambra or to glance at the Guardian’s photo of the day? Hours of reading and writing can leave even the most bookish person starved for images and color. The iPad is a relaxation and consumption device for me (the laptop = work), but it provides a refreshment of eye, mind and spirit that surely do me more good than a whole suite of productivity software. I use it to look at art.