Pete, many thanks for this great plugin.
It doesn't recognize localization immediately in most cases, but once a user clicked a link it usually works.
Another thing: I am getting lots of these errors in log file - what could the problem be?
[03-Aug-2012 05:53:00] PHP Warning: file_get_contents(http://www.amazon.co.jp/Canon-デジタルカメラ-IXY600F-パープル-PR/dp/B005NGGH9E/ref=pd_zg_rss_ts_3371371_3371371_2
function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found