My BB is a GPS, MP3, Cell phone, etc. all in one. Has Bluetooth also. So I don't really want or need another device to haul around. I can turn off the ring if I want but mostly just look at it when stopped to see if there are any calls I want to return. Since I have to have one for work, can do a lot of work on the phone, and am on call a lot it just makes life simpler for me.