thanks, went there and did a search- nothing there either
searched scooter forums- not much came up there too. the Nimble company responded to a few queries and posted some few years back but nothing more.
I think that niche is being taken up by the electric cargo bike.
That's the thing- cargo scooters are smaller than the typical cargo bike while carrying a good amount of stuff for a short distances. perfect for nearby errands, more efficient than walking and carrying.
I was even thinking of making one using a jogger stroller( yes for babies) and somehow attach a scooter deck or skateboard but i think it would be too large anyways.