最近我一直在研究SmartClient，它是一个商业的AJAX/GUI框架。
商业产品和开源产品的区别在哪里，恐怕对比一下众多开源AJAX框架例如DOJO、DWR、RICO和SmartClient就会明白。简单说商业产品提供一个比较稳固的、完整的产品，功能丰富能提供专业支持（当然需要Money），而很多开源框架专注于固定或特定的功能。

商业产品还提供了良好的标准，可扩展性。

废话少说。说说SmartClient。

SmartClient delivers on the promise of AJAX, enabling high-performance, high-productivity web applications to be deployed today. SmartClient offers:

    * the most mature and proven AJAX technology available

    * a complete solution: complete GUI toolkit, complete documentation

    * the right architecture: cutting edge service-oriented, metadata-driven architecture

    * true, tested, certified cross-browser, cross-platform support

Leading software producers, on-demand service providers, and application developers use SmartClient to:

    * convert legacy desktop applications to access-anywhere web applications

    * upgrade existing web applications with rich user interface capabilities

    * develop next-generation AJAX RIAs (Rich Internet Applications)


http://www.smartclient.com

多少米呢？？？;P