• In an interview with CIO Australia, Dell global head of marketing Andy Lark congratulated Apple for selling so many iPads but reportedly told the publication he thinks the Cupertino-based company will fail in the enterprise. “An iPad with a keyboard, a mouse and a case [means] you’ll be at $1500 or $1600; that’s double of what you’re paying,” he said. “That’s not feasible.” What say you, Fortune readers? Agree or disagree? (CIO Australia)

• 

  Twitter creator Jack Dorsey made several public appearances yesterday, a day after he confirmed via Twitter, naturally, that he’s returning to the social network and will be leading product development. “I think the biggest challenge is building a cohesive user experience and enabling and allowing for multiple views,” he said during a talk at Columbia. His first few months in the redefined role will focus heavily on surveying what’s going on within the 450-person strong company, what needs to be fixed, and making the Twitter experience more accessible to the 80% of users who primarily use it for consuming information instead of disseminating it. (Fortune)

• Meanwhile Twitter co-founder and former CEO Evan Williams took to the blogosphere to discuss his ongoing role with the social network: he’ll remain on the board of directors and “frequently” attend meetings, while contemplating a start-up of his own. (Business Insider)
• Microsoft co-founder Paul Allen says Bill Gates planned to take Microsoft shares away from him. For more of his perspective, check out Vanity Fair’s excerpt from his upcoming book, Idea Man: A Memoir by the Co-founder of Microsoft, which hits shelves April 17. (Vanity Fair and Wall Street Journal)
• Amazon announced Cloud Drive, a “music locker” that lets customers store some 1,000 songs on the company’s Web servers for free and play them directly via Web browsers and Android software. The company’s service beats Google and Apple, which are also reportedly working on similar offerings. (Reuters)
• Everyone’s always talking about Mark Zuckerberg, but what about the man behind the visionary? For that, check out The Los Angeles Times’ enjoyable profile of Edward Zuckerberg, his dad. (The Los Angeles Times)
• Facebook hired Mark D’Arcy, Time Warner’s president Global Media Group, to improve the social networking service’s ad offerings. According to The Wall Street Journal, D’Arcy and his team will help brainstorm ideas for how advertisers can use Facebook in marketing campaigns. (Wall Street Journal)
• Google is in the process of rolling out a new ad system that learns from your Gmail inbox content and better targets you. These more personalized ads won’t roll out for another month or so. (TechCrunch)
• Salesforce.com bought social media monitoring company Radian6 for $276 million in cash plus $50 million in stock. (Radian6 is already employed by more than half of the Fortune 100 companies and companies like AAA, Dell, and Kodak.) (TechCrunch)
• Not one to be left behind by all this mobile payment business, Microsoft is reportedly planning an update to its Windows phone software that would let users flick their smart phones at a checkout counter to make purchases. (Bloomberg)

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