Just stumbled across this:
It's a carry-on bag, but this one has an electric motor fitted and you can ride on it.
The thing is currently being funded on KS, so will be interesting if they get successful. Unfortunatly only available in the US, but I'll find a way around that
Here's an interview with the creators:
http://wgnradio.com/2015/08/17/intro...ry-on-luggage/
I've not posted a link to the KS campaign for obvious reasons. You'll find it easy by googling.
/M