http://www.macnn.com/articles/11/12/14/gmail.on.ios.gets.first.major.update/
Gmail for iOS gets signatures and responses, custom sounds
updated 02:10 pm EST, Wed December 14, 2011
Gmail on iOS gets first major update
Google chose Wednesday to deliver its first major update to Gmail on iOS (App Store. The new version lets users set a mobile-only signature as well as a stock vacation response. On iOS 5, users get a new custom sound for notifications.
Other changes bring improvements to nested labels as well as "numerous" smaller interface adjustments and bug fixes. The app still needs iOS 4 or later to work.
The update is the first significant one of its kind for the Gmail app since it returned to the App Store. Google has had a problematic history with the app and had to pull it almost immediately after its initial launch due to a major notifications bug.
