Twitter – The Official Microblog of People With Nothing Else to Do – has (according to itself) surpassed 5,000,000,000 tweets, as the (U.K.) Telegraph reports. Headline:

Twitter’s five billionth tweet – the ‘pentagigatweet’ – sent

The pentagigatweet. Sweet.

Also sweet: this piece from Wired that predicts actual revenue for Twittter – The Official Microblog of Other People Making Money While Twitter Doesn’t.

The company’s revenue will be a modest $4 million or so this year. Even so, Twitter reportedly turned down a $500 million acquisition offer from Facebook last November and seems perfectly happy to burn through its roughly $150 million in investor funds.

Twitter – The Official Microblog of Other People’s Money, Period.