I'm on the lookout for a convertible/hybrid, for both tablet use which can also double as full laptop replacement. KDE with Plasma seems to be a quite obvious candidate, capable of running touch-variant as pointer-based/full desktop variants of software.

Perhaps Intel might provide a good alternative. Haswell based or newer Atoms looks quite interesting. And Intel at least (usually, recently) has good Linux-support.

Too bad every x86-device on the market today is infested with Windows 8, for which I'm not willing to pay.