Just a proof of principle, playing around a bit:)
Gotcha - would be a neat little addition to ad-hoc point-of-sale terminals without the cost overhead of full-blown bank-sanctioned ones.
And it can do micropayments. Try paying half cent
for something using a normal terminal;)
Hi, this is really cool but.....
What can you actually get for half a cent nowadays?
In fact, can you actually get chewing gum with 50 cent nowadays?
Some juice to charge your mobile phone, or some
drinking water, or some air to inflate a tire etc:)
It could be a method of making really small
payments in the physical world.