I obviously don't agree to that, it has to be economically viable to exist.
No, no no. A million times no.
e.g.
http://en.wikipedia.org/wiki/Pets.com Are you suggesting a big con?
It could be a good business plan, or a mistake, or a con. You're excluding the middle.
I hate selective quoting. The con part, that is viable only on a small scale.
Okay, I didn't follow it. What's the con?
I was too quick, your comments were ok, I deleted my post, but too late.
Somebody suggest that people would buy these phones for extra, use extra power, not knowing they earned money for the company only. That a con.
Ok, I'll try again... why put that chip in the phone if you could just include it in the charger cable? Or charging pad for wireless charging?
Battery life, size, weight, efficiency are all competing qualities for phones and putting a bitcoin miner in your phone is not going to make it more competitive.
(Secure enclave type wallet on the other hand = no brainer)