Seems like more screens are coming for sure…
Microsoft releases Surface Duo preview toolkit, giving us a look into its
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There might be many screens for the user, but as long he got ONE brain only… 
I think it’s still a bit early for me to buy into the dual-screens ecosystem
Loving the look of that, but don think I could go for the brand or the operating system on a tablet.
I have learned I am bad at predicting the future so attach nil weight to my opinion.
However, the first thoughts issues:
- cost. The first dual screen devices will be more expensive. More cost than just owning 2 devices and using both?
- reliability. Moving parts fail faster. Hinges, etc, are often earlier to fail.
- innovation redundancy. Either this idea will launch and die and you bought a dud, or it launches, wildly successful, and you bought the 1st version dud and version 3 fixes most of the problems. Wait for version 3 of anything new, they ironed out bugs and the rich geeks paid for it.
- battery life. If you have more screen, you have to drive more light and pixels. So either you have worse battery life, or more battery, making it thicker and then you would not want to carry in your pockets, so you need a bag, and if you have a bag, why not carry a 2nd device instead…
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is for sure…Android does a reasonable split screen already, doesn’t work with every app but enough for my common dual app.
I’m either just have my trouser pocket and so not want a bigger folding device, or I have a bag and so can bring a tablet.
Nice, now the Ipads can do that, but not my iPhone 7 yet 
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The method Android uses is not particularly tablet friendly as tablet you’re more commonly in landscape mode and some apps don’t support split screen. So I can appreciate Microsoft putting a focus on split screen.
So you can see why sometimes the larger screen devices are squarer aspect ratio e.g. 4:3. In the Android phone world the split-screen in portrait mode is a good fit with 20:9 2.2 vs say my tablet 16:10 1.6
Above is off my phone, below from my tablet
So you see it’s quite workable in portrait but needs more thought about landscape. More use of PiP “Picture in Picture” apps. Google, who own Android aren’t really developing for tablets, they leave it to custom Android like Samsung Dex or Huawei EMUI Desktop Mode.
Below is Huawei tablet desktop mode example:
So would paying for a folding screen device vs owning 2 devices each with split-screen capability be worthwhile? Probably, eventually once matured.
This is two Chrome windows.
