Thanks to the efforts of several former LNXI engineers, there is now a place to openly discuss issues with, now defunct, Linux Networx gear. If you currently own an aging Linux Networx cluster, but don’t feel the need to purchase a comprehensive third-party support contract, toss your issues over at the LNXI Users Google Group. This is also a great venue for continuing [informal] LNXI user group interactions.
For more info, head over to the LNXI Users Google Group.
Thanks to Josh Aune for posting this in a comment.