I'm that guy who quit his job. Here's a web-app I made.

http://nwtronix.com/life/index.html

It's been done in a very short period of time to scratch my own itch: a usable life expectancy calculator, preferably one where you don't have to fill ALL THE FIELDS.

I had first mockups in Illustrator and JS engine done within two days. Another four days were spent on slacking off and bringing design + functionality together.

It uses jQuery UI too.

What do you guys think?