Schools already use programs like "White Smoke" and http://www.whitesmoke.com/ and "Style Writer" http://www.stylewriter-usa.com/ to identify grammar errors and stylistic errors, and suggest corrections. These programs are able to identify active and passive voice, clarity and readability of writing, ambiguous words, gender specific words, cliches, and more. I'm not sure the use of such software is such a great idea. I guess it's OK as long as a teacher reviews the results. Then again, if the teacher doesn't do as good a job as the program does...

Do you have ssh enabled?

This is purely a CYA move on the part of his legal dept. If some kid "burns his eye out" playing with a "lightsaber," and the lawsuits start a-flying - LucasFilm has set precedent by warning the manufacturer of the danger, and by disavowing any affiliation with them.

Xegl isn't dead, there's still Dave Reveman who iirc is employed by Novell. I think the shame is that most people agree that Xgl in some form is the future of X. I think this simply means the future is NOT now, and won't be any time soon. However there are advances being made, Exa being the one that's stealing Xegls steam currently.