It's been a while since we talked about the ol' Konami Code. But it makes appearances in more than just video games, believe it or not.
Take Google's RSS reader, cleverly named Google Reader. If you log in, you'll see the sites you're following on the left-hand side. If you put in the Konami Code (using the arrow keys for the directions and the A and B keys for A and B):
Up, Up, Down, Down, Left, Right, Left, Right, B, A
Then your background will turn into this:
What's the significance? Probably nothing other than at least one of the people working on the Reader is a video game fan. And that, in itself, is pretty awesome.