Because Windows 8 discussions never get old...but this is interesting especially the part about the lack of use of Metro apps on touch screen devices.
http://www.pcworld.com/article/2039445/and-the-study-says-windows-8-users-rarely-touch-metro-apps.html#tk.nl_pcwbest
http://www.pcworld.com/article/2039445/and-the-study-says-windows-8-users-rarely-touch-metro-apps.html#tk.nl_pcwbest