Face it, true Microsoft believers: it's just not that easy to explain Microsoft's "sort-of" version of Windows 8 known as Windows RT.
We took a couple of healthy stabs at it in our Surface RT review and our Windows RT FAQ, and as an operating system it ships with some serious problems.
But fear not: Just because Redmond doesn't want you calling it Windows 8 Lite doesn't mean it doesn't have redeemable qualities. Windows RT and the devices that run it offer some excellent, interesting innovations. Here are our top six:
Read more at source:
7 reasons why Windows RT works | Windows 8 - CNET Reviews
See also:
http://www.eightforums.com/windows-8-news/10363-top-10-biggest-drawbacks-windows-rt.html