Saw the article on NASAWatch, it looks like Voyager 1 left the Solar System. I know no one has taken notice with the launch of SpaceX's Dragon yesterday. Take a look at the graph for the Cosmic Rat rate:
http://voyager.gsfc.nasa.gov/heliopause/heliopause/recenthist.htmlI guess we have to confirm this with Voyager 2 when it leaves.
SM