Alas whilst there are many who crave such a device, as a market, it is still niche for a sole target. Dell, offer you the option of Linux, more so, drivers. Yet, they still offer the laptop for the windows end user at the other end of the spectrum. That end also has larger market.

For me, wouldn't it be great if laptop shells had a universal connector you could plug the mainboard of choice via an edge connector, be that ARM, X86, MIPS,????. Certainly make laptops more upgradable and save upon production costs with a standard laptop mainboard form factor.