But imagine if you could use your external GPS receiver to keep a log of your travels and then be able to see your journey on.
Better yet, imagine if you could use that GPS travel log to synchronise your digital pictures with their exact locations, so you can post them on sites such as Locr or Flickr and let your friends see where the pictures were taken.
The Qstarz Travel Recorder BT-Q1000 -- the little black box in the pic -- does all of the above and only costs around £60, which is much cheaper than many alternatives.
Admittedly, it is fiddly to geotag pictures -- it involves some quality time with your PC -- but at this price you can't complain. -Andrew Lim