The CVT system used in scooters is not a good comparison. The DN-01 has automatic transmission, but it doesn't use belts like CVT's. It's a hydraulic transmission with shaft final drive output and mechanical lockup. It's kind of unique in the motorcycle world, I can't think of anything else like it (but I'm sure some of the more mechanically-oriented members will....)
Here's a link to more about the DN-01 transmission:
http://www.totalmotorcycle.com/Motorcycle- ... les/#dn-01
The detuned 680cc twin in the DN-01 and it's 595lb weight will probably limit performance more than that transmission. The transmission is kind of cool, some engineering went into that.
All that said, I'd prefer to shift for myself. But if I was interested in an automatic transmission bike, I'd take a serious look at the DN-01. I've ridden scooters with CVT's before (Honda Reflex). This system is more sophisticated.