To showcase how the Yellow pages is now on the iPhone and Android Yellow Pages have created a game called Yellovator that lets you use your mobile as a controller for the game.
The mobile page is HTML, while the game itself is flash and for the user the process is pretty simple. No app to download just a unique ID to sync up the gameplay.
There were mixed reactions in the office on this but the tech part of me likes this a lot. The launch party however, seen in the video, feels like overkill and a waste of time