ShutterSnitch. Interesting little app with which you can receive images via WiFi on the iPad and automatically tag them with metadata and geocoding - could be a rather interesting combination with an EyeFi card in my Sony or my Panasonics (the M8 unfortunately cannot be used with EyeFi - the SD slot on the M8 is too narrow for the EyeFi and the metal body blocks too much of the weak signal). Simply connect the camera, put the iPad in the backpack and walk around and take snapshots and occasionally use the iPad as an extra-large lightbox.