There simply aren't that many free software friendly wifi chipsets and none
of the ones used in desktops/laptops are used in tablets (broadcom and
atheros are the only options for 802.11n). The tablets are pretty much all
based on SoCs which require ath6k for wifi or some other driver that is
dependent on non-free firmware.
The graphics are potentially a bit easier to solve as there is at least one
graphics chipset used in mini boards and tablets. This is the Mali-400 and
Mali-450.
We've been hacking on boards with them... but nothing yet to show for it...
at least not a total solution.
