The article is incorrect.
Also did a quick check : ROS is at https://github.com/ros, OpenCV at https://github.com/itseez/opencv (a mirror of the code at code.opencv.org). It's morbid I know, but this is one hugely positive aspect of Open Source : The code lives on...
OpenCV is being overseen by Itseez, and ROS is being overseen by the Open Source Robotics Foundation. More to the point, all of Willow Garage's code that they've been key contributors/supporters to (ROS, PCL, OpenCV, etc.) are all currently being used as the official software platform for the DARPA Robotics Challenge, which is only 4 months in to a potential 3 year long competition. None of these projects are going anywhere.
Willow Garage obviously contributed a lot to the whole field, and I'm glad that their legacy will remain available for all.
They haven't even confirmed with the company yet. The site (http://www.willowgarage.com) lists nothing relevant to this and nothing's on their blog. Did someone at ieee even confirm any of this before publishing?
Edit... Just read again to try and find some more and this "multiple sources" business sounds an awful lot like that X-Surface debacle. I expected more.
(let the feeding frenzy begin -- there are some amazing people there. I wish I had the funding in the bank to hire some of them today.)