We've realised that we haven't mentioned any retail installations so we'd better put that right by posting a few now.
First up, Turners Garage in Pulborough had a single Sam4s Titan S360 terminal with a scanner in their forecourt shop. They also have an integrated card terminal, supplied by Paymentsense, allowing them to accept customer's card payments by seamlessly transferring the balance directly from the till to the card machine.
You may notice that there is a customer display on the back of the EPOS terminal. This 2-line version dislays products as they are scanned along with their prices and shows the total of the transaction at the end. Especially helpful for the hard of hearing.