This will explain things.

A great information packed article on Google

[Lester]

A very interesting write up about Google. Check it out!

[google.com...]

[jeremy goodrich]

That was their April Fool's Joke some time back. Funny stuff :)

[netguy]

It's certainly not new, but a cute reminder of Google's sense of humor..........

[coconutz]

Wonder what we'll see this year.

Will there be a March Update? [webmasterworld.com]

See message #20