There's a number of things the computer industry -- and specifically Apple products -- have helped hasten to being obsolete or antiquated, including the video rental store and the "feature" cell phone. The cash register and the stand-alone credit card payment terminal may be going the same way. Business app developer Global Bay has announced that Pacific Sunwear has joined a growing list of clients switching (mostly) to Apple mobile devices for inventory, sales aids and point-of-sale terminals.