Like ur self, I'm also looking for a bluetooth that can trigger the cam on iphone 4s, mainly for moment when I'm all alone for a picture.
Have tried the following earphone without success, all purchase through Apple Store, guess will have to source somewhere else.
1. Jawbone ERA - failed
2. Bose BLuetooth Headset series II - failed
Read that Iphone 4S apple earphones volume up button will trigger pictures using camera on Iphone 4S - it works. Also heard/read that blue tooth devices with volume up controls will work also - tried Motorola H730 and Blueant with no success. Anyone had success with a bluetooth for taking pictures - like to know the brand /model - Thanks. Just posted this and then found this thread. Hopefully yiou folks have already figured this all out - love to hear from you folks!!!