The terminal is a completely standalone way to ring people up. For a food truck environment with limited space, the Terminal is a great way to go. The terminal accepts swiped, dipped, and contactless payments.

Do note the terminal does need a wifi connection in order to work. Your phone or tablet's Hotspot capabilities are enough though.

If you decide on going with a Stand, it does only work with Apple tablets. Also, if your food truck is anything like the trucks I'm familiar with, the service window is about at the customer's eye level. The stand only tips down a little bit, so it will be quite difficult for customers to interact with it. And the stand isn't something you want to hand out the window.

IMO, the Terminal is probably the best idea for any food truck. It's small, extremely portable, and will run almost everything the Point of Sale does. (it doesn't have the grid like the Point of Sale, but that's the only downfall I can see)