Twitter co-founder Biz Stone has quit the micro-blogging site to focus on new, presumably equally crazy, entrepreneurial projects.
In a post on his blog, Stone said he was leaving Twitter to restart the Obvious Corporation, the company that came up with the idea for Twitter in the first place. Twitter was so successful that it quickly became Stone's primary focus.
Alongside Stone, the Obvious Corporation will be home to Web heavyweights Evan Williams, who helped spawn Blogger (coining the word 'blog' in the process), and Jason Goldman, who has held prominent roles at both Google and Twitter.
It's possible that Stone's departure means he doesn't think there's anywhere left for Twitter to go. The addictive, joyfully pointless service is estimated to have about 200 million users, including almost all of the CNET UK staffers. Those users produce about 190 million tweets every day, but Twitter still hasn't made any money, relying on external investment.
There's no word yet on what the Obvious Corporation is cooking up, but, given its past performance, we expect big things. On its website, the company states that its "thesis is building systems that help people work together to improve their lives and the world". So maybe a machine that automatically sorts socks?
It's been a week of social shake-up, with Google officially unveiling itsnetwork, which aims to take on Facebook.
If you've figured out what the point of Twitter is, we'd appreciate it if you could let us know in the comments section below, or on our Facebook wall. Cheers.