The Language Construction Kit: "This set of webpages ... is intended for anyone who wants to create artificial languages-- for a fantasy or an alien world, as a hobby, as an interlanguage. It presents linguistically sound methods for creating naturalistic languages-- which can be reversed to create non-naturalistic languages. It suggests further reading for those who want to know more, and shortcuts for those who want to know less. "
This looks really cool. Any SF world building Zemoxians should take a look at this for creating unique languages. Software Zemoxians could possibly take this and build a language construction tool or generator.