Some related posts from Technorati and Google.

[Ogle Earth] Navizon lets you be geo-social: For example: You have an atrocious meal at a restaurant, and decide to warn people away: You write a message on your mobile device, tag it (à la Technorati) and post it to Navizon's server then and there. Anybody else plugged into the network and passing nearby will from now one be altered by it, if they are listening for the right tags.

[Gpsgazette.com] GPS Gazette: This new service allows users of the Navizon Network to post information about a specific geographic location and tag that area. People using this service can post anything about a specific location like for example reviews of the restaurants of the area.

[Navizon.typepad.com] Shareloc's blog: You can do many other things with the Geotags: tag speed cameras on the highway so that other users will be alerted to slow down, come up with cool games, remind yourself of buying some milk each time you pass by your corner grocery store, propose to your girlfriend by having a geotag "would you marry me?" popup on her cell phone when she will pass by 

[Navizon.com] Navizon: P2P Wireless Positioning for the World.: We LOVE GPS (I mean we're total GPS geeks) and we believe that when you're cruisng down the wide open road or navigating from city to city or driving across any country -- nothing beats GPS -- but we also recognize and know that there are a lot of places and situations where GPS doesn't work very well and sometimes doesn't work at all -- and it's in these places and situations that Navizon works best.

[Ogleearth.com] Ogle Earth: For example: You have an atrocious meal at a restaurant, and decide to warn people away: You write a message on your mobile device, tag it (à la Technorati) and post it to Navizon's server then and there. Anybody else plugged into the network and passing nearby will from now one be altered by it, if they are listening for the right tags.

Reflected tags on Technorati: Blog, Geotags, Geotags.org