This is definitely good to see. We use too many chemically anti-bacterial products in our lives.
That's a really expensive portable ping pong setup. All you really need is the portable net for a more reasonable price: http://www.ippinka.com/blog/pongo-pla…
Fantastic idea! Now if you could control the lock with your smartphone in case you lose your keys, that would make it more usable.
Social bike locks is an inevitable future, so it is not pointless. There was another bike lock that allows you to share bikes on Kickstarter a while ago: http://www.ippinka.com/blog/bitlock-s…
You can also use a simple tool like a silicone razor pad to achieve the same results: http://www.ippinka.com/shop/razorpit-…