HootSuite (Twitter & Facebook) App for Android
'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, LinkedIn, and Foursquare accounts.
Update Twitter, check in on foursquare, view your LinkedIn connections, and comment on your friends' Facebook posts wherever you are. Upload photos, receive notifications, view click stats, and more. Simple, elegant, and powerful, HootSuite allows you to send and schedule Twitter updates from anywhere.'
This is a free app