I recently bought a windows tablet to toy around with it. It has an Intel CPU (Baytrail SoC) and was very cheap. It comes with an integrated Intel graphics one is used to see in Desktop CPUs and for which free drivers do actually exist. It has an UEFI firmware and it was fairly easy to boot Linux on it out of the box. It has some flaws like unstable clocksource and wireless drivers (not mainline). But there seem to be much development currently.

It was a really nice feeling seeing a device of this class running Linux with near to zero effort and really wished it would always be that simple.