Steam has released a mobile application that allows gamers to interact with the Steam store and accounts directly from their iPhones or Android phones. I just downloaded the app for Android, and can't comment about the app just yet because my account hasn't been approved for the closed Beta, but hopefully I will have a chance to check it out soon and write up a review.
Here is more information about the app from Steam's Press Release:
January 26, 2012 — Valve, creators of best-selling game franchises (such as Counter-Strike, Half-Life, Left 4 Dead, Portal, and Team Fortress) and leading technologies (such as Steam and Source), today announced the beta release of the Steam application for iOS and Android devices.
With the Steam app, gamers around the world may chat with Steam friends, browse community groups and user profiles, view screenshots and user-generated content for their favorite games, read the latest gaming news, stay up to date on unbeatable Steam sales, and more.
“The Steam app comes from many direct requests from our customers,” said Gabe Newell, co-founder and president of Valve. “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. 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.”
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. Gamers will be added to the Closed Beta as the service ramps up. - Steam
I wonder when EA will launch their own Origin app…
Here are links for downloading the apps: