Twitter co-founder Jack Dorsey has returned to active duty at the company and is evolved in &''fixing&'' the product, according to a report in Business Insider that cites &''three industry sources.&''

I emailed both Twitter and Dorsey, and I got the following response (I&'ve cleaned up the punctuation and capitalization because that&'s how I roll) from Kay Luo, formerly of LinkedIn&'s public relations team who&'s now the PR person for Dorsey&'s new startup Square:

Jack forwarded me your email. Nothing has changed. He&'s CEO of Square and it&'s his top priority (frankly, I wouldn&'t have joined if this were not the case). He&'s also chairman at Twitter.

Note that this isn&'t a complete refutation of Business Insider&'s story. As Luo points out herself, Dorsey is Twitter&'s chairman, so in that role it&'s possible that he would consult on product decisions. Clearly he&'s not getting too involved in Twitter if he&'s still running his own startup, and there&'s no reason to believe he&'d be scale back his involvement in Square.

The more interesting question is whether this reflects tension at Twitter. After all, co-founder Ev Williams took over the CEO spot from Dorsey in 2008 , then Dick Costolo took over from Williams in last month. Business Insider reports that Dorsey&'s involvement is at Costolo&'s request, and that Williams isn&'t happy about it.

Twitter did not respond to my request for comment.

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Tags: rumors

Companies: Square, Twitter

People: Dick Costolo, Ev Williams, Jack Dorsey

Tags: rumors

Companies: Square, Twitter

People: Dick Costolo, Ev Williams, Jack Dorsey

Anthony is VentureBeat's assistant editor, as well as its reporter on media, advertising, and social networks. Before joining VentureBeat in 2008, Anthony worked at the Hollister Free Lance, where he won awards from the California Newspaper Publishers Association for breaking news coverage and writing. He attended Stanford University and now lives in San Francisco. Reach him at anthony@venturebeat.com. (All story pitches should also be sent to tips@venturebeat.com) You can also follow Anthony on Twitter.

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