» Stand on our tall shoulders (Use Google’s extensive code base)
» Develop your applications in Java, PHP, or Python
» Use the GQL datastore as an alternative to SQL
» Let Google worry about resource allocation, load balancing, and Scalability
GWT, Google App Engine and Google Apps Script offer clear evidence of Google’s big push to bring enterprise development to the cloud. Google App Engine should prove to be a worthy competitor to Amazon Web Services, one of App Engine’s major competitors for hosting environments.
Source of Information : Implementing and Developing Cloud Computing Applications 2011