The discussion about foreign languages has been very cool. Something's occurred to me which might interest those of you writing science fiction or fantasy with your own invented languages.
You probably already know, but in case you don't...Tolkien wrote an essay called A Secret Vice, in which he described how he went about inventing new languages. It's fascinating.
Here is a link to Tolkien's A Secret Vice on scribd. Highly recommended.
This post was brought to you to the tune of Band On The Run.