Every year *sigh*. You can't trust anything on the web (I mean even less than normally).
Serious companies going crazy, websites are like a collection of jokes, and 2 days later, many people will be disappointed by the real good jokes.
No, no, no... A good prank works the whole year, not only on April 1st. Since when does this happen anyway?
Looks like it's coming from a time where you don't had much too laugh.
Interesting read at Wikipedia.
And now back to the real world.