Since Valve introduced Steam Mobile last year, you didn't need to be tethered to your desktop to purchase games or stay connected. Now there's a new version for iPad and iPhone, with the UI specifically tweaked for iOS 7. Notable features include offline chat, improved push notifications, and a streamlined friend interface that makes it easier to see invites, nicknames, mobile or Big Picture status and Facebook friend suggestions. There's also the ubiquitous stability and performance fixes, so if you just can't interrupt that Half Life 3 discussion while out buying milk, hit the source.