From Twisper Travel GmbH:
Twisper is a location-based bookmarking tool, social network and recommendations app for the sophisticated traveler. Twisper Beta is now available. Download and test this current version now and let us know at firstname.lastname@example.org so we can activate your tester account. See you in January 2013 for the launch.Twisper The Smart Location Diary, will guide you to cafs, bars, restaurants, hotels and shops that you will love. Based on your Favorites and social network, Twisper will inspire you to discover unique concepts and quality locations, whether in your city or across the globe. We believe travel should be personal, social and smart.