So right now a 100% free laptop would look something like this:
13.3"-15.6" screen
ARM Cortex-A7 dual-core
1GB Memory
Mali400 GPU
The concerns/issues with AllWinner have been resolved. There was supposedly
work being done to reverse engineer the Mali400 GPU, but ultimately fizzled
out and no code was ever released. The good thing about the Mali400 though is
that there are some rudimentary drivers that should make it possible to have
a non-accelerated desktop environment. And while worse than the x86 Intel
graphics situation in that there is no 3d the benefit to this design is that
you don't need any non-free BIOS/bootloader. The other benefit to the
ARM/Mali400 design is that unlike some devices such as the Raspberry Pi there
is no dependency on a proprietary component just to boot.