hubfs.tgz: a screen-like utility implemented as a 9p fs. included in plan9ants
grio.tgz: modified rio with hubfs integration, user-chosen menu command, and styling options. included in plan9ants.
plan9ants.tgz: Advanced Namespace Tools for Plan 9. Based around a new kernel version (9pcram) the ANTS software helps build multiple independent namespaces on the same machine and freely share resources between namespaces on different machines.
writeprocns: Kernel mod - Echo namespace ops to /proc/pid/ns to rewrite ns of other processes. Superseded by plan9ants, currently outdated.
gridscripts.tgz: set of rc scripts and support utilities for indexing grid resources, best used combination with Inferno's registry service
iosrv.tgz: a 'screen' like utility for Plan 9 - also general purpose network piping. obsoleted by hubfs.
unreleased: in progress, incomplete, undocumented, or otherwise unsupported stuff