Bluetooth is basically a wireless connection transmitted via radio waves (gives me a head ache after 10 mins with it on).
So you can have a bluetooth usb port, and have your cell phone upto 10 metres from your pc and you can still transfer things from and to the phone.
You can get upto 100metre Bluetooth connections also.
I've seen recently some cool bluetooth Printers, again where it can be upto 10metres away from the PC and it works fine.
As it's radio waves though it's like sticking your head in the microwave for 5 minutes,
I have a bluetooth headset for when i'm driving :-
If you want a cool Bluetooth phone, get a SE S700i :-
