Flickr has just updated its mobile client to show you nearby photos based on your GPS location.

The web-based app can now present you geo-tagged photos within a certain radius of your GPS location. As you move around a city, you’ll have to manually refresh the site to see updated photos in your location.

The mobile app is not as in-depth as the PC browser version in terms of features. The PC version map is more interactive as it lets you base your search on the distance from the center point, the time the photo was taken, or by “interestingness”. Also, you can’t toggle the map between Satellite, Map and Hybrid modes on the mobile version, for that, you’ll need to download Google Maps or another mobile mapping application such as the new MapQuest for iPhone.

The app could be useful if you are near landmarks or a recent past event.

Currently, the feature only works on the iPhone (requires OS 3.0) and Android powered devices.

The new feature is web-based and does not require you to install any app. You can access it from http://m.flickr.com by clicking the “Photos taken nearby” link. Unfortunately, the feature requires you to be logged into Flickr to use it.