Need a QA environment or a place to stress test the latest version of your app? The cloud was built for test and development environments. Utility-based pricing and the flexibility to scale up, in or out on-demand means that you always have the right amount of compute resources when you need them.
The same features that make the cloud perfect for test/dev, make it perfect to test moving production apps to the cloud. For a fraction of the cost of creating a virtualized solution in house, a test environment can be set up to see how your production applications perform in the cloud. Test away, and only pay for what you use.