Latest Z Technologies

What is/are the latest invention you appreciated the most in these few years?

Computers/Internet are not counted. I have one in mind, and I wonder why this product wasn't invented much earlier.. Can you guess what it is? I give you a hint.. this thing is need for every household.

Public Comments

1. mobile phone? microwave?
2. A new form of injectable insulin for diabetics like me.
3. The GPS navigation system in my car!
4. mobile phone, internet... but with good inventions its always the same.... they can be abused
5. fire and the wheel
6. robots for the inabilities?
7. Magura Gutav M disk brakes!
8. the new hot water heaters. hot water in a flash without heating a whole tank.