A heat map of your preferences over the beer space.
Developer Kevin Jamieson writes, "Beer Mapper is a practical implementation of my Active Ranking work on an Apple iPad. The application presents a pair of beers, one pair at a time, from a list of beers that you have indicated you know or have access to and then asks you to select which one you prefer. After you have provided a number of answers, the application shows you a heat map of your preferences over the 'beer space.'" [more inside]