The latest release is RemiX Diskless 3.3, released in year 2007, well implemented also today.
The system is mature, totally automatic with autoconfiguration, and run very speedy
But all versions are localized in Italian, so I will develop a new version, multilanguage now.
To better explain what I said, these are some realizations:
A school laboratory with 4 thin client, Slackware remote desktop

A school laboratory with 22 thin client, W2000 Terminal Server over rdesktop

All systems are reliable and speedy

Download
The latest releases, localized in Italian, are here:
RemiX diskless 3.3 - boot from network (PXE, etherboot)
RemiX thin client 3.3 - local disk (small flash disks, USB-stick)
