A new posting on Gerry MacKiernan’s Mobile Libraries blog tells us about a new application for Apple iPhone. We can now search and display recent additions to the arXiv repository of preprints in the physical sciences. A clever, and logical enough no doubt, development in the trend towards mobile information. And something more for me not to do with my iPhone, adding to my vague guilt that I use relatively few of its features. Is a phone a sensible way of accessing and reading scholarly information, where it will have to compete with the distractions of all the other forms of incoming information ? Perhaps even posing such a question labels me an irredeemable digital immigrant.