I cannot find the link at the moment but there is a similar tactic being used against small businesses using online stores. Some one claims the patent rights to ecommerce and is suing small guys, one at a time.
Found a link on Slash Dot
http://yro.slashdot.org/article.pl?s...thread&tid=155
They have a website, very similar effort
http://www.youmaybenext.com/