When I watched some photos last weeke I saw a new mashup called contextwatcher.com
in Flickr it looks like this:
“The weather here was rain. The prognosis is windy and rainy. mild. This photo is uploaded via the ContextWatcher. The context tags are added automatically, e.g. location data may come from a GPS or from GSM cell positioning.”
You will find this here: http://www.iyouit.eu/portal/
You could plug this to your Flickr account and afterwards your GPS tagged photos appear on a map. Ok that was cool one year ago but today nothing special (also my HTC mobile needs about a minute to find the satellite and enable GPS tagging to the camera, but nevertheless it was a cool thing)
Hence, the new thing is that all GPS tagged photos now show context awareness: below the photo you see the weather at this point, available wifi networks or people around this place. This is really a good start for interactive photoalbum. E.g. you could also include travel deals or wikipedia entries (like in google earth). Or more for private pleasure you could build a last.fm mashup, both programs know the date so afterwards you could hear the music which was playing e.g. on your mp3 player or mobile phone when the photo was taken. The Flickr API also allows you some kind of own ideas! Especially a mashups where google Earth is not included like in the 96% of all other mashups
The GSM thing you will find here
http://www.lab.telin.nl/~koolwaaij/showcase/gsmcells/
or “the most interesting” photo (they are all tagged with “contextwatcher”) here
quiero descargar un gps para mi computadora