Apple increased R&D spending by $1 billion in 2012

Apple published its annual Form 10-K for 2012, a detailed (and tedious) fiscal report for investors required by the Securities and Exchange Commission. Along with a summary of numbers for the past three years, the filing reveals spending on research and development has grown significantly to $3.4 billion—an increase of $1 billion over 2011. Apple has added the equivalent of nearly 13,000 employees over the last year, the majority of which staff its nearly 400 retail stores worldwide.