Yahoo today released a brand new mobile application for planning trips, Radar for the iPhone, iPad and iPod touch. The app is available at no charge in the App Store and includes a smart chat bot that you can interact with. Using data from a number of popular third-party services, like Yelp and TripAdvisor, Radar delivers personalized recommendations of sights to see, activities and restaurants in an attractively designed mobile user interface.
After using it briefly, I can safely say that Radar is one of the best mobile apps Yahoo has published in a while.