Thanks. I agree with Julia, it's a weird name: `x` is often associated to Xorg tools, and there's this scary `rm` at the end that evokes some kind of remove tool.
EDIT maybe "X" to mean "cross/transform" is an American-ism. Going for the first time in the US, it took me a while to compute that "Ped Xing" street signs should be read "pedestrian crossing" :D (and immediately think: why not a simple evocative symbol of a road with someone walking on it?!)