Last night, Google unveiled something called “Gmail Labs.” It can be found under your Settings tab in Gmail. Of course, typically, this will roll out gradually to users, so you may not see it, though it went live at 6 PM PDT Thursday night, so most should have it by now.Gmail Labs is a way for us to take lots of the ideas we wouldn’t normally pick and let you all (who use Gmail) decide whether they’re good or not. When you sign in, you’ll see a new page in Settings called Labs. It has a list of experimental