Goomeo that has some pretty interesting features. The first thing it does is let you share your files with other people using wifi (direct phone to phone) so you can share contacts, MP3's. playlists, podcasts, videos, pics and other files. It also has a chat feature that lets you text message or voice message (like a walkie talkie) also using wifi so it's free. Through Goomeo you can also update your facebook status or tweet and you can provide your location and a meeting point. This is an alpha release and it work for WM devices and the other devices as well (iPhone, Android and Symbian) coming soon.