When you turn on the Ubuntu phone you'll see something strikingly different. You'll see a beautiful reflection of yourself, a visualization of your life, crafted by artist, ever changing, totally personal, and completely unique, just like you. As you use the phone the image will evolve. It's like your signature and it's stunning. It's not a lock screen, it's not a barrier, it's a welcome screen. We don't need a lock screen because Ubuntu is the first phone that uses every edge of the screen to take you directly to what you need.
Check out the video demonstration of the new mobile phone OS below... It starts around 6:30. Ubuntu for phones will be showcased at CES on January 8-11, 2013.