Throwing any last remnants of fragile self-consciousness to the four winds, I break out my subpar French and very rusty Italian and Mandarin Chinese (Aiya!) and see if, even under the onslaught of terrible accents, Apple's new iPhone 3G S Voice Control can still do as it's told.
Note: the accent appears to be key. If you say a command in French, you can't pronounce the following name English-style and expect good results (though Chinese seemed much more English name tolerant). However, I tried some (poorly rendered) regional accents at the very end and that didn't seem to be a problem.
If you're multilingual, or have a colorful twang to your speech, give it a try and let us know how Voice Control works for you!