Innovation that makes you go "WOW!"

The Wow Innovations I've seen in Japan...

(1) I heard that our Japanese host had an electric bicycle. So when he rode over to our accomodation one night to meet up for dinner, I asked him if I could try it and he said ok. So I asked where the trottle was. He said just ride; which I did. And wow! It's a power assisted electric bike! The bike detects your pedal force and magnifies it. So with a little bit of effort, you can start zooming about. (I think its make and model is "Yamaha PAS XPC26".)

(2) We were in the lift and someone's shoulder accidentally pressed the wrong floor. What do we do? We cancel it! "Double Click" to cancel. I'm wondering if this is a common feature which I just never tried before. I'm going to try it on every lift I board now!