In case you are bored at looking at this page you can change it yourself dynamically. Though Google released this yesterday it is not an April Fool’s Day joke.
Check it out
http://sanjaysub.blogspot.com/view/
http://sanjaysub.blogspot.com/view/flipcard
http://sanjaysub.blogspot.com/view/mosaic
http://sanjaysub.blogspot.com/view/snapshot
http://sanjaysub.blogspot.com/view/timeslide
The last one is really nice I should say.
