Travel Suitcase To-go by YANG DESIGN for Tumi

Im curious as to how much extra space/weight the single wheel scooter aspect takes up.

Somethings I immediately see. Reduced room in luggage.
Weight - how much would this weigh unloaded? Most Airlines have a weight requirement.
Check in only? Size makes it seem like no way you could carry it on, much less lift it over your head.

Have any more details on this idea?