Actually, he's wrong on that point. there is a way to force quit an app without saving its state.
Press and hold the sleep/wake button for several seconds, until the Slide to Power Off control appears. Release the sleep/wake button and hold down the Home button for another 7-10 seconds.
The app will quit and return the user to the Home Screen.
That only gets me one round trip, and I don't want to stop at the kiosk every day. It lets me buy multiple tickets, but not put multiple trips on one ticket.
Yeah, I noticed the 3G support after posting that. With 3G, though, Skype might be enough... I'm now seriously looking at this thing. Google produced some worrying posts and news articles, which may dissuade me, but if not, I may well buy one shortly.
https://squareup.com/help/en-us/article/5125-square-stand-su...