On april first google "announced" their TiSP service, home broadband through the plumbing.

http://www.google.com/tisp

Now iTnews reports on a similar system from H2O Networks being deployed at the University of Aberdeen.

http://itnews.com.au/News/59429,university-taps-sewers-for-web-access.aspx
http://www.h2o-networks.co.uk/index.php?page=home

There is further discussion on slashdot.

http://slashdot.org/article.pl?sid=07/08/20/1336234

Funny news :)