Modes and features include:Find Home

Modes and features include:Find Home. Mark a position as "home", and this features easily gives you a vector back to it. Useful in a wide variety of settings, from hiking to flying and exploring.Track back. Similar to find home, but in this case, you're trying to follow your same route back.Activity mode. Tracks speed and distance.Time calibration. You can also use the GPS to set the watches' time for super-accurate timekeeping. Atomic watches, take notice!Navigation mode. Use waypoints and routes as downloaded from the computer to follow a route.Each time you use the GPS, you can have it log data into internal memory for later downloading. This is then displayed in either the Suunto Trek Manager software, or on Google Earth.The GPS, interestingly, cannot display raw latitude and longitude. For all its other features and capabilities, for some reason, no raw coordinates. Strange. Update (9/28/07): We've just been informed by Suunto that the X9i can display raw latitude and longitude information. If you go to the Function menu (long press on the middle right-hand enter button), you can select "Position" which enables viewing coordinates. Since this is a less frequently used feature, it is not the default, and is somewhat hidden. Our apologies to Suunto for the misinformation.The included PC-based Trek Manager (sorry, Mac users -- no Mac software exists or is planned) is, unfortunately, disappointing. Out of the box, traces from the watch simply display as red lines on a blank background. No maps are included, and you have to pay $99 each for the compatible National Geographic map sets -- a bit of ruse, in my opinion.