Attack on the Bb patent....

I just was catching up on some blogs when I saw a posting on the Dutch Sakai blog. Sakai has announced it will be filing for a reexamination of all 44 claims in the Blackboard patent. They are filing this together with Moodle and Atutor. This is a very interesting development. They are obviously not going to wait or trust Blackboard (who claimed they were not planning to charge Open Source products...)