Google Translate for Websites
Google Translate announced today that the tool can now be embedded directly into your website and the site content can be automatically translated into 50 languages based on the default language setting of the reader's browser.
Official Google Blog: Translate your website with Google: Expand your audience globally
This tool looks like it is most useful for casual translation of pages, and is very different from the automated translation script.
I think anyone who makes money from AdSense, or who wants to increase the number of indexed URLs by including a translation script would probably avoid Google's new toy, but it could be very useful for anyone who owns a site where the primary goal is to provide information, and perhaps encourage users to sign up for an email newsletter.