This little device is a basic GPS datalogger, which comes with some pretty basic software which, though a little on the clunky side, does seem to work pretty well. I plan to use this with a small OQO pocket computer running Windows XP while travelling. The unit is 3.15"x2.75"x0.7", so is pretty compact. The silver coloured plate is the battery cover - it's powered by two NiMH cells (supplied), which are recharged via the USB connector. Other than that, there are only two controls - the big silver cover power switch and a mode selector on the side. The device comes with three preset modes, for pedestrian, bike and car travel (they differ in the data sampling rate), but these can be adjusted using the supplied software.
In addition to the two software packages for downloading data, the unit comes with an application for adding location data to digital photograph files (so no more wondering where the heck we took those snaps of different Highland views!).
Setup seems to have been pretty much faultless, and I have made a couple of tracks, albeit stationary, to tests the download functionality. I'll give it a go on the bike tomorrow. It seems straightforward to visualise the information on Google Maps (I haven't installed Google Earth on the OQO). More later.