Ideas just pop in, but what do you mean by cool?

cool like this: http://venturecrapital.us/index.html or cool like this: http://lal.com/home

Your future boss may just want to see some little tool that gets his company a little buzz. He's probably not expecting you to solve a huge problem.

Query their api and make the desktop background change to an si swimsuit model when certain datapoints are triggered. :)

Take it easy, there is no pressure on you! :)