Oracle retains the Hudson name and IP, community considers fork/rename
groups.google.com
groups.google.com
Posting a mailing-list post is probably not a good source, agreed, yet it's the most recent. Maybe this post from the Hudson creator and lead developer sheds a better light: http://kohsuke.org/2011/01/24/on-oracle-proposal-about-hudso...
I find it an interesting phenomena that there exists open source projects with as permissive licenses as MIT that are hosted by companies who require committers to sign the agreement that in addition to MIT/etc grants full IP rights to the company coordinating the open source project. Additionally the use of open source project name can be controlled by a company with a commercial interest.
I'm not saying that it's evil, just something community members often don't realize or suspect until these rights get enforced.
I find the situation somewhat similar to Facebook. Users accept terms at sign up that in essence give a full royalty-free copyright to Facebook for any item user writes or posts.