A mix of utilities and CAD and automation tools characterizes our first roundup of engineering applications for the iPad. In searching Apple’s App Store, it’s obvious that there’s a lot of low-hanging technical fruit. Most notable is the plethora of engineering unit conversion programs. We’ve included a few we found of particular interest to mechanical and industrial engineers. There are also many apps of value only to captive users of a particular vendor’s products; we’ve included some with widespread user bases.