I'd be really interested in knowing how do they do the phonetic matching. Things like, the nonexistent English word "bocket" sounding like Brazilian slang for blowjob ("boquete"), but only when spoken the way a Brazilian would.

I think this cross-pronouncing thing would actually be harder to tackle: It's more important to try to match the way users on their home locale would say the foreign term, than the way the foreign people would say it.

To illustrate what I mean, consider the word Skype, said in Portuguese, is pronounced as if it were spelt in English as "Shkuipy" (I mean [ʃkaj'pi]).