When Google first started doing this, it was great. A welcome respite from our expectations of corporate monotony. Plus, it was genuinely unexpected, and therefore more funny.

Now that every company has to do something, or risk being labeled uncool by users/potential recruits, the humor seems forced (and therefore less funny).

Perhaps the best April Fools Prank Google could pull now would be to treat this day like any other. Imagine the irony of billions of people waiting to be "surprised", anticipation slowly increasing throughout the day, wild speculation about any normal announcement that Google makes.

Now that would be funny.