I saw this bike featured in "Daily Planet" on discovery channel.
I thought it was pretty cool. it's entirely electric, and if everyone drove one of these in the city, there would be no fuel consumption(for the cycle during the day, anyway.) Not that i'm against using up fuel...
the silent operation part is remedied by recorded "Music" of exhaust notes from various motorcycles, the factory guy said on the show. You can choose harley-esque potato-potato or screaming 4 sound or ducati or whatever.
If I had money, I would sport one of these for city, for sure. ..when in the mood..