If you have a Chrome OS system, you know it can be a hassle to sign out just so that someone else can borrow the computer for a few minutes. That may not be an annoyance for much longer, though. A new developer version of Chrome OS includes experimental code for running multiple profiles at once; after others sign in, you can switch between users at the drop of a hat. You can even send windows to different profiles. There's no certainty that Google will bring multi-account support to a polished Chrome OS release, but those willing to take some risks can switch to the Dev channel to try the feature today.