Foursquare for Series 40 - Foursquare helps you find new ways to explore the world around you. See where your friends are, learn about the places they frequent, keep track of all the things you want to do and learn about new things to experience from your friends!
SubliMobi With Sublimobi, Meet with new people, Keep in touch with your friends, Chat and Share pictures from your mobile.
Works with MSN, Hotmail, GMail, Facebook, Yahoo, MySpace, Orkut, Friendster etc
twibble mobile Twibble mobile is a fast and feature rich micro blogging client for Java enabled smartphones