I have searched and found on the low end the RAM Mount (>$20) and on the high end the Dohan Mount (>$70). I don't know if the dohan is available yet but it looks pretty cool.
RAM Mount iPhone 3G 3GS Bike Mount RAP-274-1-AP6U (GPSCity.com)
Dahon unveils a waterproof, shockproof bicycle mount for the iPhone | iPhonefreak
what do you guys use if anything to mount your iphone to your bike?
RAM Mount iPhone 3G 3GS Bike Mount RAP-274-1-AP6U (GPSCity.com)
Dahon unveils a waterproof, shockproof bicycle mount for the iPhone | iPhonefreak
what do you guys use if anything to mount your iphone to your bike?