engine - 8:13 am on Jun 7, 2008 (gmt 0)

You may have noticed that Google has a new favicon, the small icon you see in your browser next to the URL or in your bookmarks list. Some people have wondered why we changed our favicon -- after all, we hadn't in 8.5 years(!). The reason is that we wanted to develop a set of icons that would scale better to some new platforms like the iPhone and other mobile devices. So the new favicon is one of those, but we've also developed a group of logo-based icons that all hang together as a unified set.

Google's Marissa Mayer Explains The New Favicon [googleblog.blogspot.com]