As articulated in the preceding section, we will look at a variety of IoT applications and services in the days ahead. Besides, we will also see enterprise-scale, distributed applications running on cloud servers. With the overwhelming success of MSA, all kinds of legacy (monolithic) applications are methodically being enabled to be cloud-ready and microservices-centric applications, which are famous for scalability, availability, and flexibility. That is, massive applications are being partitioned into a number of fine-grained, publicly-discoverable, network-accessible, interoperable, API-enabled, composable, portable, horizontally-scalable, and independently-deployable microservices. There are application-modernization and -migration toolkits to move refactored and remedied applications to cloud environments in order to reap all the originally envisaged benefits of the cloud conundrum. There are best practices, integrated platforms, and patterns (architecture, design, integration, orchestration, security, and deployment) aplenty to quickly undertake legacy modernization to produce cloud-enabled applications.