I have just experienced an odd but really cool feature regarding my lock screen and I can't work out how to get it back (Phone Model: Galaxy Nexus running Android 4.3).
I went to unlock my phone (using pattern unlock) and a lock-screen widget appeared on the same screen as a 4x2 bar down the side of the screen. I was able to access all my lock-screen widgets via this 4x2 bar through small sidewards flicks (much like a cube spinning on a vertical axis). The Pattern Unlock section (with time at the top) was reduced in size to accommodate this 4x2 bar.
Has anyone else experienced this anomaly or know how to make it a permanent in Settings?