Yesterday's post about former TechCrunch UK staffer Sam Sethi's decision to take Michael Arrington's TechCrunch head-on in covering American technology startups didn't capture the whole picture. Oliver Starr, global editor for mobile content, will cover mobile and tech issues for BlogNation USA. Oliver Starr is also an ex-employee of Michael Arrington, as a founding author of MobileCrunch, a sister site of TechCrunch focused on mobile computing.

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