In our previous examples, the client application held a direct service communication line with the service infrastructure. This way, the mobile application would load fresh data that's required to display a certain view on every view-model creation. While this provides an up-to-date context for the application, it might not be the most desirable experience for the user since, when we're dealing with mobile applications, we would need to account for bandwidth and network speed issues.

When developing a mobile application, it is a common mistake to assume that the application running on the simulator would behave the same once deployed to a physical device. In other words, it is quite naive to assume that the high-speed internet connection that is used on the development machine would be the same as the possible 3G network...