When you are reviewing your emails with OS 6 you can go back to the previous email or forward to the next email without having to return to your message folder.
In an open email, simply swipe the track pad, or use your finger if you have the new Torch, either to the left (forward) or to the right (back) and the previous or next email will scroll into view for you to read and deal with.
Have you found any new tools with OS 6 for your emails? Let us know by leaving a comment and we will publish the best one.