Google has launched an updated standalone Gmail app for Android users, just as long as you happen to be using Android 2.2.A whole raft of updates are listed on the Google Mobile blog. For a start, Google has improved message replies, access to quoted text, and more. Also, as you scroll through a conversation, your most important message actions will now stick to the top of the screen, one click away, no matter how long the email is. If it's a very long thread, just tap 'Show quoted text' to reveal the previous message, just like Gmail on desktop.But the headline act is the addition of the priority pnbox, albeit in a limited capacity. If you’ve enabled priority inbox via the desktop version of Gmail, you’ll see an 'Important' label that shows all messages flagged as important. You can also add a shortcut to 'Important' to your home screen.As we said, Android 2.2 is required for the app. So if that's landed, maybe this should be your next stop.