About half of the world's companies will enact BYOD (bring your own device) programs by 2017 and will no longer provide computing devices to employees, a new Gartner report predicts. Ultimately, only 15 percent of companies will never move to a BYOD model, while 40 percent will offer a choice between BYOD and employer-provided devices, according to the report by Gartner analyst David Willis, which was announced Wednesday.