Mobile application development is the focus of the final part of Cliff Saran's interview with Werner Vogels. Vogels says that on iPhone and Android smartphone devices, the apps are pretty innovative. They are also being produced at break-neck speed. In order to creat these apps, developers are not building web services themselves. They consume external services. Small lightweight apps running on your devices connect to cloud-based web services, pulling together location awareness and context-based information. This approach to use cloud-based web services will become the building blocks of future enterprise applications according to Vogels.