http://java.sun.com/developer/technicalArticles/WebServices/jaxb/index.html

Being from sun I am hoping to derive the following

. What do they say about the overall architecture?
. Where is it heading?

Table of contents

What's JAXB? 
An Example: Accessing an XML Document 
  Bind the Schema 
  Unmarshal the Document 
Another Example: Building an XML Document 
  Bind the Schema 
  Create the Content Tree 
  Marshal the Content Tree 
A Final Example: Updating an XML Document 
Binding Can Be Customized 
Distinct Advantages 
Run the Examples