Bluetooth is much more than a wireless headset.
I use it to connect my Palm TX to my GPRS phone for mobile Internet access. (The Palm has a much easier to use Internet interface than phones do.) I also use Bluetooth to transfer data between my phone and PC and Palm.
You have become a cyborg! Some day they will activate the signal that turns all Bluetooth wearers into electronic zombies. If you feel your arms involuntarily rising straight out in front of you, try to rip the thing out of your ear before it's too late.