I have a customer who has a brick & mortar store and an online osCommerce store. She needs something that will automatically take stock out of her online store when something is purchased from her b&m store and vise versa.
I have installed the qtpro contribution to her online store. It is very important since she keeps track of inventory by attributes.
The pos needs to be very user friendly since she has a few employees that will also be using it.
Eventually, she would like to use a barcode scanner in her store as well, so a pos that is compatible with that would be preferred.