tedster - 5:34 pm on Dec 17, 2011 (gmt 0)
According to Google employee JohnMu (John Meuller), posting on their webmaster forum:
Note that we do not use locational meta tags (like "geo.position" or "distribution") or HTML attributes for geotargeting. While these may be useful in other regards, we've found that they are generally not reliable enough to use for geotargeting.
For Google's instructions about how to work with multi-location websites, see [googlewebmastercentral.blogspot.com...]