I have started a project to enable strongly typed json-rpc between java and flex 2 /actionscripts 3 http://code.google.com/p/kickamf/
The key point of this project to being able to convert values from java backend to strongly typed actionscripts 3 objects (instead of generic objects).
To be able to do this, there are a couple of changes I will need from Xstream JSON package. I went through the documents and was not able to find out how to reconfigure the Xstream.
I do not have a comprehensive list of changes. the ones I found was:
a. proper escape of special characters for strings;
b. Date mapping need a different data format;
c. Calendar need to map to as3 date;
d. object/class representation may need some changes.
if you are also interested in these changes, I would be more than glad to present a comprehensive list and discuss the changes with you.
Qianfan "Melvin" Ma