Transparent back cover... that's nice. Not amazing, but will probably get them talked about a little more without so much forced PR.
They are *trying* to be ethical by investigating their supply line and not buying from suppliers who don't support slavery? Great! No hacker supports slavery!
It may not be totally focused on hackers/modders - which is fine. It's a modular phone that we should be able to replace/repair/home-make components for!
If hipster/vegans also like it make it more popular, meaning more spare parts at less cost... great.