Google Drive for iOS has received a fairly significant update, adding support for single sign-in, multiple accounts and proper iOS 7 support. Single sign-in lets you sign in to a Google app just by selecting your account if you're signed in to another Google app already installed on your device. This has been rolling out slowly across Google's suite of iOS apps, and is particularly convenient for those of us using many different Google services.
Multiple account support lets you switch between personal, work, and other accounts as well, all within the same app. This update also has better printing support, letting you print files with either Google Cloud Print or AirPrint.
This free update is available now on the App Store. Is Google Drive your cloud storage portal of choice?