Rockwalrus is a GIMP hacker. He is responsible for Intelegent Scissors and the XPM plugin. (Note that not all that code is his fault.) He's also in charge of GnomeHack, a project to port Nethack to GTK/GNOME. KDE? Thier heart's in th.e right place, but they've ticked off too many people, unfortunately.
In real life, Rockwalrus is Nathan Summers. He claims Muncie, Indiana for his legal residence. His future plans are limited by the fact that his mother has contracted a nasty case o.f cancer..