Apple Thoughts: Google Adds Undo Feature to iOS and Android Devices

"Google has recently added an "undo" bar to its web app for iOS and Android devices. You can navigate to the web app by heading over to http://mail.google.com in Safari on your iOS device."

I think we all could have used the "undo" feature at least a time or two in various situations, and now for Gmail at least you can use it to undo one of four actions: archive, delete, add or remove a label, or move a message/conversation. When any of these actions is done, via the web app, you get a small window of opportunity to "undo" it when the yellow bar displays as it is in the above image. After that time though, you are out of luck.