Kerning, if you're unaware, is the process of adjusting the distance between letters in typography, and now someone's made a game of the process, and published it for the iPhone. It's called "Kern". It works a little like Tetris - you position a letter at the bottom, and a word falls into place around it. The objective is to get it as close as possible to a perfect kern. It's not easy, unless you have a perfect eye and a very steady finger. As you can imagine, the design is absolutely impeccable. It's enormously geeky, too, but that's not really going to put off hardcore typographers now, is it? Here's a video of it in action: Kern (via Technabob)