It looks like we have a new GoogleBot that we need to worry about. The Google spider has the User Agent; "Nokia6820/2.0 (4.83) Profile/MIDP-1.0 Configuration/CLDC-1.0 (compatible; Googlebot-Mobile/2.1; +http://www.google.com/bot.html)" and comes from a Google IP address. The bot is not incredibly new, but it is picking up speed. Many Webmasters are noticing this new creature explore their sites. There is a whole section on the Google Remove URL page under the Remove transcoded pages anchor. This transcoding translates the page and strips out some html, which is upsetting to some. Mobile is important to Google, they have even added mobile queries to Google Sitemaps recently.
Forum discussion at Search Engine Roundtable Forums, WebmasterWorld and DigitalPoint Forums.