Postabon is a deal sharing site that works with iPhone and Android devices, but the truly innovative feature is that it uses location awareness and AI.

For example, once you connect, the site figures out where you are based on your IP address and then shows you any store discounts in your area.

Then, once you register and start browsing for deals, the site uses Common Lisp and a Hunchentootserver to track your searches and preferences (say, if you normally want to see deals on books and DVDs).

For example, once you connect, the site figures out where you are based on your IP address and then shows you any store discounts in your area.

But my IP address is a Birmingham one, I live three hours from Birmingham!

Don't ask me