Google App Engine很吸引人。

免费享受Google的云计算，只要你掌握GoogleAppEngine API。太诱人了。真不知道将如何影响搞虚拟主机业务的小公司了，也许取决于 python的流行。

开始做GAE的用户了。呵呵。

A webapp application has three parts:

• one or more RequestHandler classes that process requests and build responses.
  相当于Servlet;
• a WSGIApplication instance that routes incoming requests to handlers based on the URL.
  差不多是ServletFilter的功能。
• a main routine that runs the WSGIApplication using a CGI adaptor.
  就是完成servlet engine里分发功能吧。

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