HootSuite - HootSuite for Android: Manage Twitter, Facebook, and Foursquare from one place.
Manage multiple social networks on the go with HootSuite for Android. Now supports multiple Twitter, Facebook, and Foursquare accounts.
Update Twitter, check in on foursquare, and comment on your friends' Facebook posts wherever you are
Waze: Community GPS navigation - Waze is a free, 100% user-generated, social navigation app that allows drivers to build and use live maps & real-time traffic updates to improve their daily commute
Plurka is the best plurk client application for Android.
· Support App2SD. You can move the app to your sdcard to save your internal storage. (It requires Android 2.2 or greater)
· Log-in/log-out. It's more security that the app does not store your account and password but only your cookie just like using on the website
Remko's forum is an application where you can discuss the latest News & Events, Gossip, Music, Sports, Religion, Fashion, Love & Relationships, etc. with other smartphone users WORLDWIDE. What are you waiting for? ITS FREE So far already more then 190
Symbols Keyboard - Forget old school smileys! With the first Android Symbols keyboard you can add special symbols to all your texts (sms, mail, facebook, blog, twitter,...). TextArt is the new way to let friends and family know how you feel
TwitterDroid lets you read and publish to your Twitter, it is a kind of port of Twitterific, the excellent application for MacOS X.
TwitterDroid 0.1.2 is an early alpha stage software but it is already functional - you can read the latest 20 tweets from your friends and publish a post to your own timeline
GPS Tweet - Share your location with a Tweet, it's easy... download and install this app, after opening it, write a message, press the Twitter logo for sharing your position on Twitter, your friend sees a link, when he clicks the link he sees your position and your message on Google Maps