See here: http://expressionengine.com/forums/viewthread/184431/
Basically, the idea is to have Google Translate process the non-latin titles, return an English translation, and have that translation converted into a URL-friendly URL Title.
It could even assist with latin, non-English titles. For example, while the title “c’est la vie!” would normally be converted into “cest_la_vie” by EE, using this feature would return “that’s life!” from Google Translate, which would be URL-friendly’d into “thats_life” - potentially much better for readability/SEO purposes.
This would probably be best implemented as a per-weblog setting (Auto (default) | On | Off) to display a “Translate & Generate URL Title” button on the Publish page. The default setting of “Auto” would be hooked into the language setting of that weblog, and if anything other than English is selected there, the button would be displayed in the Publish form.
I don’t know API’s enough to figure out if such a thing is possible or not, but here’s the Google Translate API: http://code.google.com/apis/language/translate/overview.html