While enthusiasm around the tablet market has been strong for the past few years, many began to get worried when the growth of tablet sales began to cool off. But Steven Sinofsky, former president of Microsoft's Windows division and current board partner with investment firm Andreessen Horowitz, believes tablets will rise again in 2015. "Some thought 2014 was the year tablets faded. Many debated the long replacement cycle or weak competitive position of tablet between phablet and laptop. The reality is that tablets will outsell laptops this year," he writes in a guest article for Recode.