I have GPS tracks (in gpx format) that I usually use to geotag photos. Is there a simple software to view these tracks (i.e.: not use Google Earth)? A bonus would be simple modification, like deleting waypoints. TangoGPS seems to offer GPS track import only in connection with geotagging for pictures.
Try Viking - you can download and edit your tracks, and also add OpenStreetMaps, Terraserver or DEM layers. It also allows to have georeferenced map layers and some other features.
Instead of installing software I used the free online GPX Studio which suited my purposes just fine (combining 3 GPX files and deleting a few waypoints). For the record I have no affiliation to the software, just a happy user.