feature: geolocation status: use tags: fallback gtie8 kind: api polyfillurls: geolocation shim, geo-location-javascript
geolocation shim uses Google's IP-GeoCoding service as a fallback. geo-location-javascript doesn't but has hooks into BlackBerry, WebOS, and Google Gears specific APIs. In most cases, you should just not expose Geo features in your app if the feature is not natively present.