这个平台可以免费用于开发和测试客户端应用程序，但是，平台上的数据通常会抹去。
This platform is free for you to use while you develop and test your client application.
Feature Pack还在服务器上提供一组丰富的库和连接功能，以帮助客户端开发。
The feature pack also provides a rich set of libraries and connectivity features on the server to assist in client development. These features include.
每一种可用于RIA和SaaS的主要客户端开发框架都有自己的优缺点。
Each major client-side development framework available for RIA and SaaS has unique costs and benefits.
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