Steam

With the free Steam app for Android, you can participate in the Steam community wherever you go. Chat with your Steam friends, browse community groups and user profiles, read the latest gaming news and stay up to date on unbeatable Steam sales.

Recent changes:
Visual changes
No need to force quit the app
Will not use battery when it is inactive
Will not log in unexpectedly
Startup screen can be set
Chat history from other devices is available
Sending chats to offline friends is possible
Navigation menu has links to Inventory, Library, Going offline and Logging out
Single chat notification
Login page will not refresh upon switching away from the app
Fix for some HTC and Samsung devices
Fix for paypal purchases