There's an update of phpMyGPX available at http://osm.erlkoenigkabale.eu/phpmygpx.php
This web application based on PHP5, MySQL and OpenLayers helps me to manage all my GPX files, trackpoints and waypoints in a database.

Some features were added:
- added Dutch and French translation
- added table showing waypoints and provide a simple search within
- added checks for proper gpx format and missing timestamps
- added new altitude chart option: altitude against distance
- and many bug fixes

Feel free to try and comment...