Facebook - Implements one time passwords via Phone text

One time temporary passwords can be helpful to ensure the primary permanent password is not captured while using a public PC (e.g., caching, keyloggers, etc).  Facebook has implemented this feature and by texting a special number, a one time login password good for 20 minutes can be used.  As it requires registration of a cell phone into Facebook, it should be used by individuals with a true need for these services.

Facebook - Implements one time passwords via Phone text
http://www.pcmag.com/article2/0,2817,2370673,00.asp

QUOTE:  We're launching one-time passwords to make it safer to use public computers in places like hotels, cafes or airports. If you have any concerns about security of the computer you're using while accessing Facebook, we can text you a one-time password to use instead of your regular password.  Simply text "otp" to 32665 on your mobile phone (U.S. only), and you'll immediately receive a password that can be used only once and expires in 20 minutes. In order to access this feature, you'll need a mobile phone number in your account. We're rolling this out gradually, and it should be available to everyone in the coming weeks.