Google has released its official Gmail app for iPhone, iPad and iPod touch, promising faster access to messages, better visibility of important emails, and a UI that's designed from the ground up for a touch interface. As expected, the app supports push notifications and sounds, along with full inbox search, and on the iPad there's a split-pane view which shows both inbox and message preview.
Update: First impressions aren't so hot... read on for more details
Auto-complete of email addresses from Gmail contacts is supported, along with your iOS device's Contacts, and there's attachment support as well. Some of the features we're used to from the desktop browser are present too, like Priority Inbox for those content to let Google flag up their most important mail, threaded conversations and the usual bevy of archiving, labelling, starring, deleting and spamming tools.
Swiping support to see labels has been integrated, pulling out a label list from the side of the screen, and there's pull-down-to-refresh support as well. You can download the Gmail app for iOS here [iTunes link]. Let us know what you think in the comments!
Update: Looks like it's already netting some less than positive reviews. Error messages on start-up, only a single Gmail account supported; it seems this is merely a web view of your inbox wrapped up in an app.