Bug was found on S3 where it's possible to bypass the lockscreen with a few button presses. I was able to do it the first try using the method described. Once it's done, the notifications panel is inaccessible until restart, but other areas seem to be accessible.
Galaxy S III bug disables lock screen, grants full access, tests patience
Edit: I have JB on my phone. Seems like Engadget had trouble with S3's on ICS.
Galaxy S III bug disables lock screen, grants full access, tests patience
Edit: I have JB on my phone. Seems like Engadget had trouble with S3's on ICS.
Guess they got it to happen on JB 4.1.2 but only once.