Google has a tradition of silliness at April Fools. This year they have announced an artificial intelligence computer named CADIE that has its own blog and assists with a mobile application to search your brain when needed. It also will answer your email for you.
They also have an australian rugby ball that is mated to a cell phone and GPS. I need one just because I am hard on telephones and i think a rugby ball would be able to withstand dropping it in the mud and on the rocks and the street in Argentina.
They had better watch out though. Sarah Conners is likely to come after them. She doesn't joke about AI's.