Valve's Steam service has just expanded to iOS and Android devices. The newly-released Steam Mobile app will allow gamers to chat with Steam friends, browse community groups, read the latest gaming news, and more.

"The Steam app comes from many direct requests from our customers," said Gabe Newell, co-founder and president of Valve, said in the announcement.

"Seeing which of your friends are online and playing a game, sending quick messages, looking at screenshots for an upcoming game, or catching a sale - these are all features customers have requested," Newell continued. "Mobile is changing way people interact, play games and consume media, and the Steam app is part of our commitment to meet customer demands and expand the service functionality of Steam to make it richer and more accessible for everyone."

The initial beta release will be locked. While the apps can be freely downloaded, not everyone will gain immediate access. "Those who wish to join the beta just need to download the Steam app (free of charge) and log in to their Steam account via the mobile app to express interest in the beta," the announcement notes.

Click here for the iOS version, and here for the Android version.