Its April 1. And many famous companies are following the tradition started by Google, to announce some major breakthrough product or service. 

Google, has announced its CADIE project. Some big sci-fi like mumbo jumbo. More, including videos here 

The Guardian, not wanting to feel left behind, broke another big story - its going to stop its paper edition and publish its stories entirely on Twitter.com (the rapidly growing micro-blogging service. See GetHealthyHarlem's twitter feed) 

Well have fun. And post links to other such announcements.