I worked for Samsung a few years ago. Managers always say "We should get first place in the market we get involved". So I think they invest so much on this business. First of all They know R&D very well.
Wow that's for real? They don't want to get left behind when there's something on trend and if they have seen so much profit that can potentially add to their popularity as well as revenue, they don't want to be late with it.
Good news are not recognized by the people as they are more focused with hearing bad news all the time so this is a good one. AFAIK, they are also creating something that can fully support mining. But it's not recommend to use phones to mine.