April Fools' Day 2012: Best of the Brand Hoaxes

Gmail is offering Gmail Tap, which lets you enter Gmail in Morse code from your smart phone.
      

YouTube is offering the YouTube collection on DVD, which mocks all that former, inferior technology we used to rely on for information. 

Lynx (aka Axe) body spray has created an app that lets you spray yourself with your phone. 

April Fools' Day is celebrated in different countries on April 1 every year. Sometimes referred to as All Fools' Day, April 1 is not a national holiday, but is widely recognized and celebrated as a day when people play practical jokes and hoaxes on each other.Precursors of April Fools' Day include the Roman festival of Hilaria, held March 25, and the Medieval Feast of Fools, held December 28, still a day on which pranks are played in Spanish-speaking countries.In 1508, French poet Eloy d'Amerval referred to a poisson d’avril (April fool, literally "April fish"), a possible reference to the holiday. In 1539, Flemish poet Eduard de Dene wrote of a nobleman who sent his servants on foolish errands on April 1. In 1686, John Aubrey referred to the holiday as "Fooles holy day", the first British reference. On April 1, 1698, several people were tricked into going to the Tower of London to "see the Lions washed".

In the Middle Ages, New Year's Day was celebrated on March 25 in most European towns. In some areas of France, New Year's was a week-long holiday ending on April 1. Many writers suggest that April Fools originated because those who celebrated on January 1 made fun of those who celebrated on other dates.

In Wikipedia