Sad to say Rt is not a windows 8 table , it does not run windows 8 . You can only run apps from its store , and a few special program's in desktop mode . ( I thinks it's office program ) . It's confusing to say the least .
The new ones , the "pro" will I think run standard program's but is expected to be expensive . The concept is open to other manufactures and prices will drop , but the take up is slow .
There is starting to be some tablets that do run windows 8 , but it's early days yet .