They are a bit late to the game...
http://images.google.com/images?gbv=2&ndsp=20&hl=en&sa=3&q=diesel+motercycle
You're right...Paul Crowe reported on the Neander diesel over three years ago.
It's an unwieldy SOB, at least in the form that I saw it in...but it's very possible they've improved it since then.
Don't know why the M/C world is jumping on this one...unless it's the solving of the realistic placement of the intercooler and the ability to put it into full production.
Interesting.