I don't know who had the clever idea, but please fix the issue that http://www.geocaching.com/(anything)gps leads to this "GPS devices" page.
It really breaks stuff for people using "gps" at the end of their nicknames, e.g.
founds for username grizz-gps or founds for username aj-gps.
Everything ending in "gps" seems to get mapped to the gps-reviews page at the moment, adding another parameter or just an ampersand helps.