To avoid staff Fraud, it would be nice to have a Customer Display so they can see transactions as they are posted. I think an Android device, similar to a Kitchen Display would be great, showing current transactions as well as the price and totals.

Alternatively, integration with a Display Pole would be an alternative.

This is a potential show-stopper for our small café we are opening soon, our accountant has stressed the importance of this feature for a cash business.