The “OH CRAP” mode in gmail
Gmail labs is rolling out another good feature. The “Undo” button. If you turn the feature on it will delay a message from leaving the server currently for 5 seconds and 10 seconds may be added later. Gmail keeps coming up with good ones, like when they added the “Drunk” mode making users solve simple math problems in order to send a message (the user would turn it on for certain hours of the night to prevent drunk messaging something you would regret). Personally I like this feature, but with only 5 seconds that is hardly enough to proof a message over again. Still I have had plenty of times when I send a message and immediately realize something I typed wrong or forgot to say. Undo sounds like a good feature to me.