* Added Guest Passes functionality - allows owners of certain Steam games to let their friends play games for free, for a limited time trial
* Changed Steam client auto-update mechanism to first acquire updates in the background and then ask user whether to restart & apply
* Added Favorites area and collapsable status categories to 'My Games' list
* Added 5 new colored skins (Default, Ice, Sand, Obsidian, and Grey), selectable in "Settings"
* Added 'next' button to Steam news window, allowing multiple messages to be viewed in a single session
* Fixed client attempting to update some games which user does not own; was occuring when user had played game during a Free Weekend
* Fixed games purchased via PayPal not working in offline mode