It's not development. Development is when something, that didn't work, starts working or when worked poorly, - starts working better. because of someone's effort. And these bothering about and rummage in things that are not and will not be available "opensource" is a waste of time. it won't bring users any benefits. it's just yeah - stupid and vain entertainment for weird people. to demand everything be opensourced. ROM code not only is not open, most importantly - it's not replaceable. so all this pointless asking for opensourcing stuff, that needs not to be open is waste of time. you might get a "source" of it showing the blob inside has a Stallman photo bitmap, whereas in fact, there is Bill Gates photo inside. and all the freedom has evaporated. you cannot use your device anymore! because hell, there is smiling Bill Gates inside. 
The same goes to literally every peripheral device, you would need to run your SBC. take an SD card. this simple. or eMMC module. without these, SBCs won't run. All these devices have firmware inside, which you don't have source code of and never will. and which you cannot replace! so what's the point to mess around and ask these silly questions of "how open a board X is". why? why one would need that? never it is open 100%, never. period. the board producer provided you as much information as they could. so you can mainline and compile your linux every day. functionality, quality of software/hardware - these are the real concerns, that users should be bothered with (if they were driven by common sense). not the nonsensical "freedom" and opensaucing frigging ROM code.
I start to wonder - why all these FSF dudes don't demand opensourcing car manufacturing, for example. or nuclear plant technologies. anything. because why not? the freedom© doesn't end on computers, right? let's demand every industry opensource everything. every bit should be GPLed! *sigh
The same goes to literally every peripheral device, you would need to run your SBC. take an SD card. this simple. or eMMC module. without these, SBCs won't run. All these devices have firmware inside, which you don't have source code of and never will. and which you cannot replace! so what's the point to mess around and ask these silly questions of "how open a board X is". why? why one would need that? never it is open 100%, never. period. the board producer provided you as much information as they could. so you can mainline and compile your linux every day. functionality, quality of software/hardware - these are the real concerns, that users should be bothered with (if they were driven by common sense). not the nonsensical "freedom" and opensaucing frigging ROM code.
I start to wonder - why all these FSF dudes don't demand opensourcing car manufacturing, for example. or nuclear plant technologies. anything. because why not? the freedom© doesn't end on computers, right? let's demand every industry opensource everything. every bit should be GPLed! *sigh
ANT - my hobby OS for x86 and ARM.