ZoneTag: "Locations tags in Flickr
How do you know my location?
When you upload your photo to Flickr through your mobile phone, ZoneTag is able to detect which cellular tower your phone is using to connect. Your service provider assigns a unique cell ID to that cellular tower. At this point, that�s all we know about your location. We don�t really know where the cellular tower is.
We use two methods to learn the actual location (city, state, zip code) that correlates with that cellular ID. First, if you use ZoneTag with a Bluetooth GPS device, the GPS coordinates of the photo will be uploaded as well as the cell ID. We are now able to learn that this cell ID corresponds to the city, state and zip of those GPS coordinates. Subsequently, if another photo is uploaded with the same cell ID, we will be able to associate the correct city, state and zip code tag to that photo.
Second, and most importantly, we are able to learn the correct location of the cell ID if users update their Flickr photos with zip code or city tags. If even one user updates their Flickr photo with the zip or city tag, we will be able to learn it and subsequent photos uploaded with the same cell ID will have the correct city, state and zip code tags automatically associated with the photo.
What is the 'cell ID' in my location tags?
The cell ID corresponds to the cellular tower that your phone connected to in order to upload your photo to Flickr. Each cellular tower that your carrier uses has a unique ID.
I don't want my location tags to be displayed on Flickr.
No problem. If you choose to upload your photo to Flickr, you will see a menu option, 'Apply location tags?'. Select 'No' to this option and your location tags will not show up on Flickr. ZoneTag will remember this setting for subsequent photo uploads.
I changed my mind and I want my location"