From what I've seen of dual screen devices already released, most android users find the idea even more ridiculous than windows users. I can kind of see their point - with a seem in the way, it's not like one big screen, the only real use in it is specialised (multi-taking, note-taking, using the second screen as a keyboard). If Samsung had any success in this early proto-stage as we walk towards the graphene screen, it'd be just as niche and limited as it will be for MSFT - at least MSFT has on therir side that the type of user who might fork out for a 2-3k niche productivity device, will also want to use office, rather than snapchat.
In this I personally think it's the perfect timing for MSFT to invest hard in developing andromeda. With the certain long term future of foldables, this very early point is where they could get an "amazon and iot" type of lead that they desperately need in the mobile field.
And I do think they should invest in software. But more like office, skype, WhatsApp, adobe partnerships, network apps for site admins and the like. If they could just kill it, on the early adopter market, and do the same with HoloLens, there could be a bright consumer future for them. This, IMO, is literally the bridge to the one OS, hybrid, cross platform future that they have been preaching for years.
All they need to do is make these two devices, and make them as attractive to early adopters as humanly possible. If they do that, they'll have a lead in two major consumer future markets, and then all they have to do is not lose ground, and try and stay competitive.
I'm still expecting google to drop android before "z" too. So I wonder what developers are going to do when they start to move to chrome or fuschia on mobile. I feel like the whole market has come to expect technology to stand still again. Like we are back in the 90s with IBM, or singing the praises of CDs.