Which in a nutshell, your point of difference with existing tech applied in Lawson or, as you supplied the information, Sam's Club, is that your system will not discriminate stores by making them exclusive and only available for, let's say, IKEa or Wallmart chains, but even Papa Grimo's Mart that sat on the corner of our neighborhood can also adapt this?

Regarding your "heard a lot of ...", I'm not sure what you tried to say with this, but I am sure the limited amount of people who actually have tried and could point out their UX on the application is simply because the tech is on experimental phase and yet to be applied worldwide on the said chain.

This matter, however, erect another question on my mind. Your competitor, Panasonic and Amazon, already on their trial phase, and it is not impossible that they are ready to launch the system worldwide in a very near future. While your project is still on their funding phase, they will need to get through the system building, tests, etc. isn't this means you're very far fall behind?