Building a super-powered netbook?

I like netbooks, my ideal size being the borderline 11–12 inch screens. I am interested in building a super powered netbook, something like that of alienware:

http://www.dell.com/us/p/alienware-m11x/pd

Now I am interested in this netbook:

http://www.pcmag.com/article2/0,2817,2368387,00.asp

So, is there anyway to make this asus a powerhouse like that of Alienware’s M11x? Switching the memory is simple, but I’m not sure how i would go about the rest. (CPU and video) Is there any way to upgrade it on that asus netbook?

If not, is there any way to build a superior netbook like that alienware?