As announced on Gearboxity, a new Steam only patch is now available for Borderlands, updating this edition of Gearbox's role-playing shooter to version 1.4.2. The new version adds the ability to sync saved games with the Steam cloud and also adds BTest, a limited-time optional experiment to allow Gearbox to gather feedback on how their game is played to help them with future improvements. They also have a FAQ with more details on this, including how the opt in/opt out process works. Here's more on what BTest involves:

• The result of ongoing work within Gearbox Labs, BTest is a limited-time experiment that offers you the chance to help us tune and improve our games.
• By choosing to participate in BTest, you help us learn more about the world of Borderlands (what guns are the most popular and effective, what areas are being played the most, etc.) just by playing the game!
• You will be able to compare your characters to your friends and other players throughout the world through the Gearbox Labs site. > - For more information on BTest, visit http://labs.gearboxsoftware.com