Xymon, previously “Hobbit”,  monitors server and network up-time, provides real-time monitoring, availability reports, downtime alerts, etc.

noxin submitted a Perl script that displays Xymon data and alerts on the #twatch networked LCD screen. You can browse all the #twatch scripts in the project SVN.

The #twatch is currently in stock at Seeed Studio: $30 for the bare board, and $45 with an LCD attached, prices include worldwide shipping.