To be able to tag your DSLR pictures with GPS information is both fun and practical. But to date, most DSLR cameras don’t have GPS built-in or is an expensive hardware add-on option. That includes the Wi-Fi iPad you might own. The last couple of years I’ve used a lot of different solutions to track GPS data while I’m out taking photographs. My first way was to use a Garmin GPS unit and then transfer the information to my Mac, but now, with mobile phones like iPhone and Android, there’s no reason to tug along yet another device.
My weapon of choice now is an app for iPhone and iPad called GeoTagr, a universal app for logging GPS tracks while you photograph, and then tag images with location data. For me, the pictures I want to tag are the RAW images that I import into Adobe Lightroom 4. And with this app, it’s straightforward to accomplish.