Microsoft Courier was a concept that combined two screens to fold over like a book, with a stylus for taking notes. We've already seen foldable phones that sport multiple displays, and Microsoft wants to bring a similar form factor to laptops.
The most important element of a new form factor has to be its user interface. What's the use of integrating new specs, but the same old OS that adds nothing new to the end experience? To counter this, Microsoft could be working on a new "Windows Lite" OS that brings in support for dual displays.
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According to The Verge, Windows Lite's "interface will be similar to Windows as it exists today," but incorporate aspects of Microsoft's giant Surface Hub display and its Windows Phone Continuum interface. This means the company will focus on keeping touch as a primary mode of input.
If the new software turns out to be a success, Microsoft could use it in single screen devices as well. Essentially, this would make it a direct competitor of Google's Chrome OS. The upcoming OS version is said to be the stripped-out version of the original OS instead of a completely new OS.
Chrome OS may have a very tiny market share, but it has taken over the budget and low-end segment massively. For a normal user who needs a machine to access the browser, check emails, and complete basic tasks, Windows 10 is turning out to be very bulky.
According to Windows Central, Microsoft is using the codename “Santorini” to refer to the shell work it is doing to make Windows Lite look and feel different than the Windows 10. Further reports from ZDNet add that Microsoft could also ship a dual-display laptop.
This isn't the first time Microsoft has tried to create a lighter version of Windows. The new S-mode supports just Microsoft Store apps, but the OS carries along a lot of baggage from the legacy OS. Even before the launch of Windows 10, Microsoft had a brief stint with Windows RT, and it turned out to be a huge failure.
This time around, the company is hoping to create a niche segment that offers a new form factor and bring in the much-needed portability features.