The Big question is: why is Apple not supporting desktop GPUs connected through thunderbolt, and why has the few windows PCs that have thunderbolt are not being offered in the US, or have become unavailable? PC makers say that they want to move beyond the desktop PC, but for the Video editors and graphics folks, the desktop still is a necessary tool! Laptops could be usefull for video editing and graphics, but only if there can be the possability of a high speed connection to some form of expansion box with a more powerfull GPU or xeon phi coprocessor! Apple, Intel, and the PC makers have lost their way, with this thin and light craze, but the gamers, graphics, and others are waiting! The best selling laptops currently are not the ultrabooks but the budget laptops! People are just not that intrested in their main computers being that light, they have tablets for that in addition to ther laptops, I have been waiting for Thunderbolt to make its way into windows laptops in the $600-$800 range but I will have to wait a lot longer, Intel really screwed up with their focus on thin and light, and Apple could be on Top if thay could develop a thunderbolt PCI expasion box for their Macbook PRO line of laptops with a xeon Phi rendering coprocessor or GPU accelerated rendering/video encoding!