Google is hiring auto completers : http://www.google.com/intl/en/jobs/uslocations/mountain-view/autocompleter/index.html Regards, Ashish Thakkar
Some more Google's April Fools jokes over here: http://googlesystem.blogspot.com/2011/04/google-april-fools-day-2011.html
its not april fool, looking interesting to me.. I think google's april fool is the text just above you mail in gmail account "new better ads are coming soon"