It doesnt sit in the bin either, theres a bio matter mulch at the bottom, the enzymes in the pee turn it into compost.
I personally think its a bloody brilliant idea.
How often do you leave the bin out of the front of your house?
i would have thought once a week or so... people go out drinking much more often than once a week. Not only that but when you do leave your bin out its normally in the week... ours are collected on a wednesday! and in most cases we take the bins out in the morning when we head off to work, then bring them back when we come home!
just seems like a lot of thought and funding into something thats not solving anything. I'll leave it at "nice idea, but no thanks Mr Swiss".