I have a jet pack.
I used to have two but alas my other one suffered carby icing at 500 feet and the sucker dropped me like a rock. Luckily I was over water at the time but it still hurt like hell when I splashed down, and the GJ Special was a write off. The people on the beach thought it was quite amusing though as I'd been buzzing them a few minutes earlier, Oh the humiliation.
I've installed carby heat on my remaining one and havn't had any such problems since.
Re pilotless pax aircraft - the technology will exist in the not to distant future but as stated won't be a viable proposition for 50 - 100 years, by which time molecular transporters will be the only way to travel anyway. Hmm..think I might beam over to New York for breakfast this morning, then perhaps Barcelona for a couple of beers before lunch, and I'll be back in time to watch the footy by mid avo.
Ah it's good to know some things will never change - like beer and footy .