It is hard to figure out what to make of DroidLaw. Essentially, it is a free legal research and reference tool, but with such a limited capacity for research that I can't imagine any legal professional would be caught dead using it in place of traditional research methods and resources.
Stories by Paul Jickling
TED Mobile is the mobile app version of the TED Website, allowing you to watch its video content on your smartphone. You may know about the TED conferences (TED stands for "Technology, Entertainment, and Design"); TED's motto is "Ideas Worth Sharing," and the nonprofit group posts videos of speakers whose new ideas are transforming (or may transform) the world.
TripIt, a Web service that tracks your flight itineraries, is a useful tool for frequent flyers. After creating an account on TripIt, you forward your travel details to email@example.com, and the information becomes available on the Website moments later. The TripIt Android app brings the same service to your phone.
Audible is an audiobook browser and player. It's easy to see the appeal of such a tool: Part of the reason why people want to own a smartphone is that it can give you information even when you're on the go, a function that audiobooks also serve.