Word Lense is one of the coolest apps in the iTunes store. The app takes an image stream from the iPhone's camera, applies real-time image processing and pattern recognition tricks to it, and it then "plays" with any text it finds in the scene before displaying it on the iPhone's screen. The PLAY part is the interesting bit. The app developer, Quest Visual, calls it a "real time translating app" and begs you to "turn your iPhone into the dictionary of the future--now!" The app comes with a toy option that lets you reverse words it recognizes in the scene, or delete them altogether.