Ipmap is an IP address grapher, inspired by an
xkcd comic and glTail. It reads data from standard
input and maps IP/size pairs on a map. You could
run this unmaintained on some display in your NOC
to visualize network traffic as an eye-catcher.
A tool that analyzes RCS files and emits an equivalent history in the form of a fast-import stream.
A system for running Perl natively within the JVM.