david pogue is here to help lay that out. he's also the new host of "nova science now" and he joins us from boston. >> my pleasure. >> so how did it happen? you said to the world, here, guys, look for my phone or i think it's stonl. what happened in between? >> well, the great thing was that i lost the phone on monday when i was on this train. and apple has a feature called find my iphone. you go to this web site and it shows you on a map either like a street map or satellite photograph of where the thing is right now. and it's available for other phones too, android phones and so on. and it's the greatest feature if you ever lose your phone. but whoever had the phone had turned it off and you can't t doesn't work when the phone is off so for three days i was in missery thinking oh my gosh this shuns of dollars in replacement fees and then thursday morning, i got an e-mail from find my iphone that says your phone has surfaced. here it is in a suburb of maryland. so there i was, you know in connecticut where i live and unable