One of the things we have now that we live in The Future is skateboarders who can ride uphill, rather than catching the bus up and skatebaording down like in the old days.
It seems that electric skateboards are gaining popularity as a personal transport solution amongst a certain demographic of the local students. I rode alongside a couple of them for a little while last week, it seems the top speed under power isn't very impressive by bicycle standards, but do you really want to skateboard at much above running speed anyway?
Totally illegal, of course, but it's hard not to see the advantages. When you're not riding it, you can just strap it to your bag or carry it around with you.