Over the weekend we broke the Hundred Million geotagged photos, actually 100,868,302 at last count, mark. If we remember that we passed the 3 billion photos recently and round the figure down a little that means (does calculations on fingers) that around 3.333% of photos have geo data, or one in every 30 photos that get uploaded.
In the last two and a half years there have been roughly as many geotagged photos as the total photos upload to Flickr in its first two years of existence.
This is starting to get seriously, seriously interesting. Combine that with GPS-enabled devices, and you get a fascinating data set to explore.
Darkslide uses this data in two ways: the smash-hit Near Me feature, which shows you photos near your current location, and Places, which lets you search for a place and see photos tagged in that area.
I can't wait for the day when GPS is a standard feature of all cameras, but in the meantime, Derrick Story has been writing about the Jobo PhotoGPS hot-shoe GPS unit, which looks quite interesting and a lot more convenient than some other solutions.