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"Cloud is the new hardware" is one of my favorite catchphrases of the moment. The idea that we can assume a fully automated, wildly scalable compute, storage, and network infrastructure is game-changing. But this applies just to the IaaS (infrastructure as a service) layer of the cloud. What's the capsule description for PaaS (platform as a service), the layer immediately above IaaS?

I think "PaaS is the new app server" does the trick. Like the Java application servers of yesteryear, PaaS delivers a service-rich, highly available dev, test, and deploy environment, plus a big dual bonus: cloud scalability and (in most cases) support for multiple languages.

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