Shazam comes in handy more often than I had originally thought it would. I think there are others like it as well.
I clicked on "Top 25" apps today and saw that the number one PAID app is something called "iFart Mobile"...you're so awesome, America.
I found an app called "Bible" which comes in handy.
But what comes in most handy, is the "Lightsaber Unleashed" program. Give your phone a wave and annoy the crap out of your wife... so much fun.