In the last year or so styluses seem to have gone from an afterthought for iPad owners to highly desirable, if still not quite essential. Some of it probably has to do with the growing number of illustration and notetaking apps, but I'll bet that the third-gen iPad's Retina display is a factor as well -- suddenly, art and writing looks good enough that precision matters. Whatever the cause, precision is the raison d'ĂȘtre for the Adonit Jot series of styluses. The Jot Touch goes yet a step further than the rest, using Bluetooth to transmit pressure data and shortcut commands to apps. We'll test