Believe it or not, Microsoft is working on a second-generation of Surface devices. If you had any doubts, you can put those to rest. But what exactly is going to be powering the different variants of Surface? Most of you are really wishing for a Haswell version of the Surface Pro (I am), but what about RT? Comments from Nvidia’s CEO, Jen-Hsun Huang, indicate that you’ll find some more magic from Nvidia.