Just what I was looking for and litte more....
I recently decided that I wanted to record GPS data in my photos. After some looking around, instead of buying a dedicated GPS unit, I bought a GPS receiver/datalogger (Holux M1000c). I really liked that it records travel data in addition to providing the GPS coordinates to the camera. It works great - the only issue is that the software that came with it is Windows only, and (at least for me) required connection to my bluetooth-less computer via a usb cable. I really wanted something to work on the Mac wirelessly. myTracks is it! I tried the demo to make sure the M1000c would work since it was not mentioned as a compatible unit (although the M241 - also Holux - was mentioned). It works! I had to follow the video included with myTracks to make the bluetooth connection between the M1000c and the Mac, but it was painless. This is exactly what I was looking for and then some. To get the GPS tagged photos included in the track is as easy as dragging the selected photos over the myTracks icon. I use Lightroom 3. For portability, myTracks allows you to sync tracks and photos with an iOS device using the free myTracks app. The myTracks app seems a little sluggish on the iPad and may need some refining, but is very functional. Quality of the photos is very good and they can be viewed as thumbnails in the track, or fullscreen. (For real portability, maybe a future version will allow connection from the datalogger to the iOS device directly)
I wish I had this during my previous trips to Europe and California and am looking forward to using it in upcoming travels. Great App.
iTouchE48 about myTracks