As I mentioned I love my Bluetooth headset.  I can click and hold the headset button and it will beep three times.  Then I can play my music and  podcasts.  If I receive a phone call while listening to music I can click the button and talk.  When the call is over, the music will start playing again (unfortunately not on my headset).  I just have to push and hold the button again until I hear the three beeps and the music will play in the headset.  I have never even touched my phone!

I knew I liked it but I would have never have guessed this is a 1 Billion dollar market!

http://www.eweek.com/article2/0,1895,1980045,00.asp