* Microsoft teased Windows 8 yesterday at All Things D’s D9 conference, unveiling a versatile user interface heavily inspired by its Windows Phone 7 platform. While users will be able to access the classic Windows desktop experience they’ll also experience the Start screen above, which presents users’ apps as tiles they can tap on via touchscreen. Also revealing: a Store tile in the above screenshot, confirming Windows President Steve Sinofsky’s implied comments that an “app distribution mechanism” (read: app store) is indeed in the works. (All Things D)

* Twitter co-founder/chairman and Square CEO Jack Dorsey also took the stage at D9 to discuss the two jobs he now holds. Swatting aside ongoing speculation that the social network might be for sale, Dorsey said an initial public offering (IPO) is more likely, though he didn’t specify when that would happen. He also described how he’d like the service to evolve. “We need to take a lot of the friction out, ” he said. “Two things we announced today go a long way toward doing that. One is photos. Then people are also looking for ways to see the photos. That’s what search is about. It gets people to that value immediately. That’s one of our biggest challenges — getting the people to the product immediately in a consistent way.” (Fortune)

* An in-depth look at Nokia CEO Stephen Elop and his efforts to shepherd the company away from dwindling market share, a falling stock, and talks of a takeover. (Bloomberg Businessweek)

* Alibaba founder Jack Ma offered some unexpected advice to Yahoo, which currently owns 43% of his company: “Separate it…into small pieces.” Meanwhile, Business Insider reports that Yahoo’s board is quietly searching for a CEO replacement but will likely let current CEO Carol Bartz’s contract run out next year rather than firing her. (Reuters and Business Insider)

* Google traced a “spear fishing” plot to Jinan, China. Under the scheme, unsuspecting Gmail users received fake emails from a person they knew which led them to a false Gmail log-in site. A Chinese foreign ministry spokesman released a statement shortly after the discovery. “Blaming these misdeeds on China is unacceptable …  Hacking is an international problem and China is also a victim. The claims of so-called Chinese state support for hacking are completely fictitious and have ulterior motives.” (The Telegraph)

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