The current product line is in final development and soon to be available on the App store after Apple's blessings and review.
PayAtTable - take credit card payments for MacPOS tickets at the customer's table using your iPod or iPhone
LookUp - look up items in the MacPOS database and see the price and current stock levels for them.
Orders - create orders on your iPad mini using the MacPOS TouchPad interface. Scan items with a bluetooth bar code scanners and them to a customer's ticket as you interact with your customer.
Read more about the features of MacPiOS which integrates the iPad and your Mac for ticket handling.