Do you know why? Because they're fucking expensive and people would have to be crazy to buy them. Especially since they look like Macbook air rip-offs and it's not something I'd want to be seen with.
Manufacturers don't want them because intel charges too much too.
Intel think that what they give is close to the final price of the laptop, and they only give motherboards with chipsets. Like, screw the display, hard drive, case etc.
Everyone I know was hyped about ultrabooks and then when the first ones were released for almost as much as Macbook airs everyone was disappointed. Everyone hoped for something in between netbooks and full-sized laptops, which is what these devices really are.
MBAs are selling well despite being even more expensive. This wouldn't be the first time someone tried to emulate Apple's "dare to be different" in terms of hardware design. And failed.
