It may look like nothing more than a glorified chip clip, but that dongle at the bottom of this guy's iPad is actually ERPLY's new credit card reader -- the latest addition to a growing field of NFC and mobile payment devices designed for small and large businesses. Once attached to an iPad's charging port, the peripheral will send a user's encrypted credit card information to ERPLY's point-of-sale and inventory management software, allowing customers to purchase products on the store room floor and giving retailers the ability to monitor transactions and stock flows in real time. Available for $50 (with a tra
