Lambda the Ultimate

Are there any network transparent languages apart from Mozart(Oz) and Google's Sawzall(to some extent).I have tried searching on this subject, but nothing significant turned up.I have not even found any references to such languages in any of the programming language (text) books.

I would be glad if anyone can answer the following questions:
- Are they different from languages which support distributed programming?
- Why are they not popular, i feel that such a language has very interesting and practical applications.( like run-time load balancing of applications etc..)
- Are there any theoritical/practical reasons why they will not be useful, even if one exists?

Any other pointers will also be helpful.