Microsoft CEO Steve Ballmer is preparing to retire from the software giant in the coming months, and ZDNet’s Mary Jo Foley has interviewed Ballmer and a number of current and former Microsoft executives for Fortune magazine to provide what’s expected to be Ballmer’s final press interview as CEO. The bet on Xbox may have cost Microsoft billions over the years, including a $1 billion charge to fix Red ring of death issues on the Xbox 360, but it has helped the company stay relevant with consumers and secure an important part of the living room. While Ballmer was helping build Microsoft’s enterprise businesses during his time as CEO, an important part of the company’s revenue today, he also played a significant role in recovering from the company’s antitrust trial.