Facebook uses your profile pic to as a key to simple navigation. Slide the icon to open Facebook's messenger app (which includes text as well as Facebook chat), the app launcher, or to return to the previously-opened app -- in this case, Facebook.
Hands-on with Facebook Home
April 4, 2013 10:16 AM PDT
Photo by: James Martin/CNET
| Caption by: Jessica Dolcourt, Lynn La
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