SevenCubed - 7:22 pm on Oct 24, 2010 (gmt 0)
Thanks for the timely posting of this reference. I'm actually days away from rolling out an exact duplicate, in another language, of a site for a bilingual client who serves her clients in 2 languages. Regardless of how Google handled it, it was going forward, but this article provides peace of mind knowing that search engines are treating it as indicated in the article.
Each page of the the 2 versions cross-reference each other in page header tag as follows:
<link href="https://www.example.com/" hreflang="en" rel="alternate" title="English Translation Version" type="text/html" />
I had actually found out about using that tag somewhere else on WW, don't remember who or where but thanks to whoever posted it. The header rel="alternate" is for the search engines and additionally each page also has a visible cross-referenced link for visitors near the main navigation menu.
I'll now consider myself to have been informed ;)