Gmail Touch, the unofficial Google Mail client that's experiencing such a terrific success on Windows 8, has received a new round of improvements today, so make sure you launch the Store to get the new version.
According to the official release notes, the new build that came out a few hours ago brings UI updates, as well as tooltips added to appbar buttons to allow users to easily figure out the purpose of the built-in tools.
Multiple account support fixes are also included, so expect a significantly improved experience after deploying the new version.
Gmail Touch remains free for all users, regardless of the platform they are running. It supports both Windows 8 and Windows RT devices, including Microsoft's own Surface RT.