The Jet Curl Jetboard was shown in Busan, South Korea. See the video below. The website ecurl dot com seems to be not online yet.
Dimensions: 1900 x 650 x 700 millimeter
Top speed: 40 km/h
Run time: 3 0-4 0 minutes
Weight: 15 kg (Board) plus 18 kg (Battery) = 33 kg
Battery capacity: 2800 Wh
Charging time: 2,5 hours