5. Windows 8 Touch

Windows 8 touch is a trend in itself, and it represents the biggest bet that Steve Ballmer's Microsoft has ever made. For the past 15 years, the Microsoft Windows operating system has maintained a consistent user experience and interface paradigm that helped bring personal computers to the mainstream consumer market.

Windows 8 has been optimized to understand touch interaction like no operating system before, including its predecessor, Windows 7. And of course, this automatically implies that there is a great opportunity for Windows 8 developers to put together natural user interface (NUI) applications for the next iteration of the Windows client.