Many SOCs are able to run with no blobs, but very few require no blobs while still offering graphics support. Some SOCs with Adreno or Vivante GPUs do however offer open source GPU support.

Re being named Foss while working in Foss: It's a pure coincidence, but has a medieval feel to it. Like Baker, Coppersmith or Eisenhower.

Let's not forget the theory of nominative determinism[0]

[0] https://en.wikipedia.org/wiki/Nominative_determinism

Eisenhower?

Allwinner A10 and A20 pretty much just work, save for MALI.

http://linux-sunxi.org/Linux_mainlining_effort#Status_Matrix

The old TI OMAP chips were good for this too.