Have you seen #[5] ‘s PoS? The merchant can take payments on a very simple (cheap) device with no internet connection. The person paying (who has internet) shows the merchant a PIN that the merchant can confirm means payment was made. Very nifty.
Discussion
Wow, might benefit from numerous payment pathways for both, either/or, neither having a connection to give greater robustness.
Can run various paths by priority.
But anything is better than nothing.
Quite nice to blend irl commerce with ecommerce with social.