[nextos]

Chromebook C201 is very recent (currently sold new), supercheap (<$200), and can run not only Libreboot, but completely blob-free. Not even CPU microcode is needed.

[mamon]

Is it possible to put bigger hard drive in it? 16GB is very limiting.

[awqrre]

apparently, it has an eMMC soldered to the motherboard instead of a HDD/SSD...

[cbhl]

Do you need a binary blob to run the RockChip GPU though?

[TD-Linux]

You get full 2D from the Linux kernel, but yeah the 3D GPU is Mali, so no luck if you need OpenGL (in hardware).

[pgeorgi]

Unlike the ME/PSP situation (signed binaries for a coprocessor that decide whether to turn on your CPU) this can be fixed with enough effort and grit.