superficie-0.7.2.2.tar.gz (1.8M). To compile yourself with rpm, just type (as root):
# rpm -tb superficie-0.7.2.2.tar.gz
superficie-0.7.2.2-1.i386.rpm (1.2M) (dynamic, redhat-7).
Otherwise do as usual (./configure; make; make install)
You can download daily snapshots of the superficie CVS tree here.
Very recomended is pstoedit. It will let convert the postscript generated by superficie into several editable file formats (xfig, sketch, etc.)
For your convenience here is a linux binary.