We've added the ability to set a custom signature for your mobile messages and a vacation responder, both available through the gear icon at the top of the menu view. We've also improved labels with support for nested labels:
Additionally, if you are using iOS 5, we've changed the notification sound so that it’s easier to distinguish when you've received an email.
We’ve also got another fun feature to make your language even more colorful (in a good way!). In the Gmail app and Gmail for mobile you can now open up a canvas and scribble a message that will be attached to your email. It's perfect for sending a quick sketch that is hard to express in words or adding a fun graphic to make your email more personal.
Scribbles support different colors, brush sizes, lines, erasers and spray paint. This example was created in the Gmail app on an iPad:
Behind the scenes, we're continuing to work on highly requested features like banner notifications, multiple login support and the ability to send-as from any account already configured in Gmail. We want to make sure these are done right as we continue to improve the Gmail app.
The update is available in the App Store and works on all devices running iOS 4+.