Software development is going mobile, bringing applications to phones, laptops and tablets everywhere. Gartner predicts that by 2015 mobile app development projects will outnumber PC application projects by 4 to 1.Mobile app developers are reaping the benefits of 45 percent year over year employment growth, according to Bloomberg BusinessWeek. Dice.com reported a 100 percent increase in job posting for mobile app developers between 2010 and 2011. Developers with the right mix of skills can find boundless opportunity in the multibillion-dollar mobile app industry. Learn what it takes to become a mobile software developer.