LIARS!
Note the promise on the cover of this June, 1940 issue of Popular Science:

I blame Hitler. No, really. If he hadn't forced us to build all those fucking jeeps and tanks, we'd be riding around in atomic-powered robotic finmobiles. I'll bet they'd fly and be able to go underwater and everything. It would be fucking sweet. This is just one more piece of evidence for the obvious proposition that Hitler was a douche.
I blame Hitler. No, really. If he hadn't forced us to build all those fucking jeeps and tanks, we'd be riding around in atomic-powered robotic finmobiles. I'll bet they'd fly and be able to go underwater and everything. It would be fucking sweet. This is just one more piece of evidence for the obvious proposition that Hitler was a douche.

Comments
(ahem)
Happy Tuesday?
That bastard still owes me five dollars!
And I want my atomic fin mobile. I wants it, precious.
However, Michelle, it turns out you're right about the losing part: today has been one of those horrible pain-in-the-ass days where you really would consider it an improvement if Hannibal Lecter fed you your own brain.
::sigh::
Alright, back to work.
On a cheerier note, if you'd like I can send you annoying text messages from me NEW PURPLE PHONE! (squeal with glee)
And yes, I agree with Jim, if I had a teleportation device, the very last place I'd use it for would be the in-laws.
So... you're saying Hitler stole the idea of the atomic-powered robotic finmobile and turned it into the VW van? Yeah, that's exactly the kind of douchey thing Hitler would do! What a douchebag! I mean, yes, I love old VW vans and have fond memory's of the one a friend owned in high school and college, but they're neither atomic, robotic, nor covered in fins (my friend's had a Starfleet NCC number painted on the hull like a shuttlecraft, but that's not the same as having fins).
Not having in-laws, I guess I wouldn't use a teleporter for that. Tell you the truth, I'm not sure how often I'd use a teleporter. A Stargate network would be pretty awesome, except that apparently every habitable planet that's not about to be destroyed by a supernova or black hole has an environment that looks remarkably like right-outside-Vancouver, which might get pretty old pretty quick. (Vancouver shares the most common extraterrestrial environment in the universe--who knew?)
Typos like that are about par for the day.