Hello Emre,
We are an IT company from India. We have started acclimatizing with the product. Kudos to your efforts. We have been able to understand the product to an extent, though with difficulties 
To start with we wish to install the application at one of friends’ restaurant.
We have been able to create, waiters, products, product groups, menus and lot of other things by self learning, through help from site, videos and forum and blogs.
We are stuck up at customer creation. We created customers (through ‘manage’ as well as through ‘POS’) but while searching they are not visible.
Another feature we would like to have is customer groupwise pricing. e.g. standard price of Vegetable sandwich is Rs. 80 but for customers defined under a group it should be Rs. 95.
We created Waiters - as Ticket Tag and defined names of the waiter as subtags. We are able to assign a waiter to a table with this. We would like to have a permanent association of tables and waiters. Is it possible?
We are curious to know the users in India.
It is a great initiative. We surely wish to contribute.
Nilam