Biz Stone steps back from Twitter -

Twitter co-founder Biz Stone has told the world and its dog that he is quitting his full-time post at Twitter to restart The Obvious Corporation.

Obvious was created when former Twitter chum Evan William tried to buy back a failed startup from investors.

Its first move was Twitter, which spun off, did rather well and became the main interest.

Stone said that he is not leaving Twitter. Writing from his bog, he said that his work on Twitter has spanned more than half a decade - and he'll keep working with the company for the years to come.

But he added that he is pretty much finished with Twitter on a full time basis as the rest of the team is "incredibly productive".

Stone wrote that he could be put to use better if he stayed way behind the scenes, stopped getting in the way and wait until he's needed specifically.

Aside from his work with Obvious, he says he wants to spend more time working with non profit organisations, lending his brain to schools and company advisory boards, and do some more work with The Biz and Livia Stone Foundation.

Stone has not yet said exactly what he wants to do with Obvious. The blog said he plans to create "systems that help people work together to improve the world" and "develop products that matter." So, not thinking in 140 characters or less now.

He seems pretty excited about whatever he's doing. He waxed lyrical about how the possibility to reach and connect expansive numbers of people, which "fundamentally changes the nature of what's possible when it comes to building businesses on the Internet".

Although to be fair, that possibility has excited for the last decade. However he claims there is shedloads of room for new ideas. But no, he is not telling anyone what these are, for now.