Cool Easter Egg on Google.com - mouse over "I'm feeling lucky"

For anyone who's not seeing it: When you mouse-over the "I'm feeling lucky" button (on capable browsers) the button text spins (like a slot machine) and changes to one of several alternatives like "I'm feeling trendy", "I'm feeling hungry", etc. Clicking on the button then runs a relevant canned search.

What is clever about this (IMO) is that once the "instant search" feature was introduced the "I'm feeling lucky" button became superfluous. With instant search it's impossible to submit "I'm feeling lucky" on anything but a blank query field.

What a long way we've come from the original role / intent of "I'm feeling lucky.".

It's been that way since mid-August. E.g. http://www.lockergnome.com/news/2012/08/24/google-changed-th...

I haven't seen it before, but it's a fantastic time waster.

I dare say it may be more interesting than StumbleUpon?????

Looks pretty normal to me?