I am continually amazed at the technological advances during my lifetime. The funny thing is, when I was very young I knew there would be advances, but I expected to see spaceships and robots and flying cars, because that's what sci fi was all about. This kind of internet/web/networking/cellphone stuff was not what I expected, and it just keeps getting more amazing.
http://www.ted.com/index.php/talks/pattie_maes_demos_the_sixth_sense.html
http://www.ted.com/index.php/talks/pattie_maes_demos_the_sixth_sense.html