Microsoft Azure is a cloud computing platform that supports wide variety of Internet services and remote applications. It is similar to Amazon’s Web Services products to provide a virtual data center which includes everything from computational resources to database services to synchronization.
The back-end data centers are hosted by Microsoft and the platform offers both an API and a client-side managed class library for developers to utilize.
Microsoft is positioning its Windows Azure cloud service as a platform to provide back-end services for mobile devices, including Apple’s iOS and Google’s Android. More towards WP7.
The goal of Azure is to provide developers who want to write applications that run in a remote data center with a platform and set of tools.
These efforts are happening concurrently with Google’s attempt to do the same for Android and the Google App Engine cloud.

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