Is it possible to get simple "apps" for my iPod nano, 5th generation?

My friend has an iPod nano, the same model as mine (5th generation) and apparently he knows of a website where you can download simple apps for it. He showed me a flashlight app on his iPod, so unless he pulled some tricky stunt on me, he isn’t lying. I’ve tried searching this with google and haven’t found what I want. I don’t suppose tapping the collective could help?

By the way, I already know about the click wheel games that you can buy in the itunes store, and those aren’t what I mean.