The Samsung experiment is quite interesting, read about it some weeks/months ago. It would be a good way to give old mobilphone hardware another purpose then just laying around or get thrown out.
On the other side, if there would be something more professional like manuals how to work with them, I assume the second hand prices would go up also.
Anyways, I think the most important part for mining bitcoin is to get the energy use down to keep it more eco-friendly and with it also more cost-efficient for the miner.
Very true. Samsung should share their phone re-purposing technology with the world as a means of recycling.
That would be cool of course. I wonder if there are any self made things out there for something like this so far?