From the (April 1) Guardian:

Twitter switch for Guardian, after 188 years of ink

• Newspaper to be available only on messaging service
• Experts say any story can be told in 140 characters

Guardian printing presses in Stratford, East London

Printing presses will fall silent in brave new Twitter-based future. Photograph: Sarah Lee

Consolidating its position at the cutting edge of new media technology, the Guardian today announces that it will become the first newspaper in the world to be published exclusively via Twitter, the sensationally popular social networking service that has transformed online communication.

The move, described as "epochal" by media commentators, will see all Guardian content tailored to fit the format of Twitter's brief text messages, known as "tweets", which are limited to 140 characters each. Boosted by the involvement of celebrity "twitterers", such as Madonna, Britney Spears and Stephen Fry, Twitter's profile has surged in recent months, attracting more than 5m users who send, read and reply to tweets via the web or their mobile phones.

As a Twitter-only publication, the Guardian will be able to harness the unprecedented newsgathering power of the service, demonstrated recently when a passenger on a plane that crashed outside Denver was able to send real-time updates on the story as it developed, as did those witnessing an emergency landing on New York's Hudson River. It has also radically democratised news publishing, enabling anyone with an internet connection to tell the world when they are feeling sad, or thinking about having a cup of tea.

"[Celebrated Guardian editor] CP Scott would have warmly endorsed this - his well-known observation 'Comment is free but facts are sacred' is only 36 characters long," a spokesman said in a tweet that was itself only 135 characters long.

I repeat: The publication date is April 1.

However, while is the byline one 'l' short of all the letters needed to spell out 'April Fool'? (thanks, M.S.!)