"I originally made this just to brush up on a few new skills and to have something fun for my desk - that so many others got excited about it is really just a wonderful surprise.
It was the world's largest bodega. So we had a huge facility and a tiny amount of orders. But now we deliver about 12,000-plus deliveries during one single day."
Where we have really applied the technology is our ability to see everything that the customer sees in real time so our ability to control the experience is so much more than it ever was.
A trial currently underway at Southampton General Hospital's intensive care ward has so far shown that health conditions such as high and low blood pressure do not seem to affect a patient's finger vein pattern to the extent that they become unrecognizable.
American cash machines still read data from a magnetic strip on the back of cash cards, so UK cards also have to contain this strip so that they can be used abroad.
But it seems the cameras would be tightly focused within Deutsche Bahn's own property - people or property outside the depots would not be filmed, so easing any privacy concerns, our correspondent says.
So Germany seems to be entering a legal grey area - it is not clear when the flight of a drone may become so extensive that the wider authorities need to intervene, Stephen Evans reports.
There will now be further negotiations with the Council - the grouping of relevant EU ministers. MEPs may manage to avoid a second vote and fast-track the legislation so that it is adopted before the May 2014 European elections.
