Here are some screenshots for the upcoming wallet release which will include (anon) EM invoicing + receipt features & will also include minor bug fixes.  (This is not to be confused with anon Encrypted Messaging which is already built into the wallet)

The (anon) EM invoicing / receipt feature will be the first phase of our point-of-sale system which we are actively developing (see old ann for more details).  Greater detail will be provided soon.