This is an amazing statistic, and one that apparently even surprised Google themselves:
iPhone users use their web browser to search Google 50 times more than any other phone… including Blackberry, Palm, Windows Mobile, everything! That’s amazing, and it shows how much easier it is to use the browser (and the google search) on the iPhone than any other device!
http://www.appleinsider.com/articles/08/02/14/google_iphone_usage_shocks_search_giant.html
justin