I see people all the time with bluetooth headsets in there ears blabbing a way at restaraunts and when even talking to someone else. Plus I worked at a theme park and I saw tons of them[to Treo 650s of course] everywhere. It seems like its more of a fad than practibility.
It's quite annoying indeeed!
[center]Palm m125 > Palm Zire 71 > Tapwave Zodiac 1 > Palm Zire 72 > Sharp Zaurus SL-C1000 + 4gb MicroDrive + Palm Tungsten T|3 (1100mah)
My T|3 is too sexy for me.