I just bought the
Motorola S9 BT Headset
and paired it to my Cingular 8525.
I'll write up a review and take some pics of it soon.
However, It does follow rule #1, #2, and #3
#1: mini-USB charge
#2: If you consider headphone and headset to be 2 different functions
#3: VERY dim led, and it is pressed against the back of the wearers neck, so it is very "stealthy"