Repost from New member intros: Not yet a Droid owner. Thinking of getting several of the the Casio Commandos for my business. I'm looking at it because I need push-to-talk. Also I'm wanting the ability to swipe credit cards from the job site...manually keypunching is not acceptable. To date, I've not found an acceptable card swiper (Square up's funding plan sux) which is compatible with the Commando...probably due to the curvature and the recessed audio jack. Does anyone know of a usable credit card reader..without printer??