Generally speaking: Win8 is nothing more than Microsoft's attempt to push their phone OS onto PCs.
The huge, glaring, fatal error of it all is the simple, yet so obvious you can see it on Pluto fact that both the Microsoft phone and it's OS are shit and had no business being on PCs/laptops. They were trying to create a demand for something nobody wants and will never want.
They can run a billion ads. They can spend billions on ads that compare Win8 to the second coming of Jebus and dancing clowns in hipster attire. They can make tablets that are light-years inferior to Android/IPad tablets all they want. They can have Balmer sweat, run around like a loon on fire and chuck a billion chairs on national/international/intergalactic TV. They can even make every OS from 7 down to MS-DOS suddenly not work. At the end of the day: Win8, Microsoft Phones, and Surface are all shit or below shit. The sooner they wake up and realize that and take actions to correct it, the better off they will be.