The Coming Borderlands
The beauty of software-as-a-service (SaaS) was that it wasn't dependent on what operating system you used, or what software you had installed, or even what browser you preferred.
It was the power of a computer program accessed from the Web. Centralized, ultimately compatible with any user from any platform, requiring only a sufficiently capable online connection. Cloud computing in a whole other sense, indeed.
And yet, with so many cloud-based services being designed to work solely with sister applications, rising "walled gardens" loom over various proprietary environments. Yes I'm looking mostly at you two, Google and Apple.