first off, who wrote this? from the ip address, it is obviously someone on the inside :)
secondly, is this a planned class, or an already done class?
thirdly, there are a few over-simplifications:
both lessdisks and ltsp can be configured to download a kernel over NFS or TFTP.
"lessdisks has terminals by default" what does that mean?
lessdisks actually defaults to using XDMCP, just like ltsp does.
it may be interesting to note that future versions of LTSP will likely also be in a chroot environment: http://wiki.ltsp.org/twiki/bin/view/Ltsp/MueKow htttp://archive.ubuntu.com/ubuntu/pool/main/l/ltsp