The use of handheld GPS units will make a big impact on the genealogy community. There are many of us who do family research who would like to record the locations of family cemeteries or burial plots. My first waypoint was the logging of the gravesite of a Revolutionary War Ancestor. By determining and recording the burial locations we can assist future generations of family members in finding these sites. If you are not interested in family history, this topic is probably not of interest. If you are a genealogist, you are excited about the GPS technology and see it as a great way to mark family and historic sites and pass this information along.