MS partner sues Red Hat for patent violation ..

[Doug Mentohl]

'Software Tree LLC claims that JBoss infringes on its database patent 
for "exchanging data and commands between an object oriented system and 
a relational system." Software Tree's partners include Microsoft, and 
that the suit was filed in Eastern Texas, which is known as a 
plaintiff's paradise for patent actions."'

http://yro.slashdot.org/article.pl?sid=09/03/04/1615250