What? You thought the announcement of Google Motion was the prank?
Yeah, that was kinda funny. But it isn't all Google has in its fun bag for today:
(1) Searching 'Helvetic' on Google changes the font on the search page to everyone's favorite font: Comic Sans.
(2) Google has added various wild animals to its maps on Google Earth. For example, a narwhal in England, a dragon in Germany, and The Loch Ness Monster.
(3) Google blimp ads
(4) Job openings for autocompleters
(5) Much more