I lost my phone last week at the SFO United Terminal. I was leaving for 4 days in NYC and that would have been a disaster. I realized just before takeoff, ran outside to the terminal and the United person handed it back to me, saying someone had just turned it in. I sent this Twitter message our but never heard from the nice person.
I logged into Facebook a day later and got this nice message from a friend that I met last year while returning her dad's lost phone. Pretty cool. Made my day and reminded me how important Karma is. :)