whereas 50s UK was all grey suits, demob mentality. We hadn't had rock'n'roll yet, mass unemployment, rationing.. it was a grim place. So the 50's sci-fi kitsch wouldn't be apparent. It would be depressing - you wouldn't be able to tell what was post-nuclear and what was pre-nuclear!
Yeah that's true, WWII skinted Britain and its Empire, I'm pretty sure we only made the last payment of debt to America last year, too. Ha ha ha! Maybe that's why they felt compelled to share British security secrets, like the location of nuclear subs and stuff, with Russia, as they weren't going to be seeing any more payments, and the agreement (as part of the debt) to use our military bases (in what was then anywhere in the Empire) wherever and whenever they wanted (without so much as a how-do-you-do) came to an end when the debt was paid off.
A Fallout London would be cool, for lots of different reasons... not least of which... the rich British characters you could write, with that messed up calm attitude of "things could be worse" when crap hits fans, and that Britishness you don't get unless you've been here. The Fallout sense of humour would be slightly skewed by Britishness, in a good way. Only with good, life-like characters though, not stereotype characters like Tenpenny. I mean, I could do a Fallout of America, imagine it loaded with stereotypes of America I mean - how I think a lot of Americans would imagine a British stereotype Fallout as in this thread - I wouldn't want to see Fallout in America, either. lol
You don't define a culture by its buildings, and the names of its cities. -_- The first computers were made in Britain, they look like they'd fit right into the Fallout setting.