Have you seen Google’s home page today? The Google logo is animated and comprises of several multi-colored dots which come together finally to read ‘Google’!
Move your cursor between them and you can again scatter the dots wide! But in the end, they will all come back together to read ‘Google’!
September 7th?
Oh yes! It’s Google’s birthday today!
Happy Birthday Google! 
Visit Google US Home Page.
While on Google, the Special Hidden Google Pages post may interest you!
But I also read that today’s logo is not related to B’day.
Today’s Google Logo color changes as you type in search box – works with Google UK – http://www.google.co.uk/