From the Microsoft forums, posted by a Microsoft employee, regarding Bing and cell tower location on CDMA:
In case this might also help: The Bing team has been tracking and isolating this issue. They reported to me today that Bing does not work with CDMA at this time but they are continuing to investigate what they can do including collaboration with carriers. Note that some CDMA carriers lock GPS/Locate Me for 911 use only, hence some of this limitation issue.
http://social.microsoft.com/Forums/e...8-d45b618a6cd2