A shot with the P67 105/2.4 that is pretty close to the one you posted (not my shot):
http://www.flickr.com/photos/sashakrasnov/5064744929/

One more note, my opinion of 'good' bokeh has changed over time, and I am finding lenses like the 105/2.4 which aren't "perfect" render more attractively than smoother lenses. The Sigmas I mentioned earlier, for example, I think are boring.