Comment Not really (Score 1) 514
"Would I be able to work with those folks in some useful capacity? Perhaps building products for foreign markets?"
I think it's easier to learn a programming language than a human language, so in practically every country you'll find people who are already fluent in their own language plus whatever programming language you know. And most of them will have learnt English since childhood.
Learn a language for fun, or if you want to see the world, but it won't tie in with your programming in any meaningful way.