What FireEagle does:

• Share location online
• Control data &privacy
• Easily build location services

FireEagle works like a brokerage. It bridges the people getting location and the people using location.  It allows users to control how much information is stored and shared.  Tom demoed how Dopplr integrates with FireEagle and controls privacy and access to user entered data.  Essentially, they are using OAuth to manage security for FireEagle.  Here are some cool things people have been using FireEagle for:

• Navizon combines GPS, WiFi and phone positioning
• Loki combines GPS-like location, local search and one-button access to location-based content
• ZoneTag take a picture with you phone and instantly geotag it and upload to Flickr
• BrightKite allows you check into a place an upload text or photos about that place.  Location based social networking.
• Plazes recognizes where you are on a laptop or phone and provides contextual info about where you are.  Create and share activities tagged with location.