What's the quickest route between two microbrews? Check the Duluth Beer Trail -- which conveniently has a mobile site.
This site, which is compatible with the iPhone, Android and BlackBerry, guides beer fans to microbrews from Superior to the Scenic Highway.
Users can search by location to find close-by bars on the trail, or users can search by brewery, which lists what bars are carrying which flavors.
For those who like to test the boundaries of moderation: The site also has click-to-call listings for local cab companies.