Actionscript talks Erlang

Continuing the discussion on how to make Erlang more Ajax friendly, I would like to share the format I use for representation of Erlang terms in my Flex/Actionscript-based X Erlang IDE.
The format codenamed as ASON (just like JSON, but for Actionscript) allows representation of every possible Erlang term in Actionscript (again funs are somewhat of a hassle) and is built upon Actonscript's support for inline XML syntax (e4x).

1. Atoms, numbers and strings encoded similarily

<value atom="abc" />
<value string="def" />
<value number="123" />

1. Lists and tuples use XML nesting

<list>
<value numbe="1" />
<value numbe="2" />
<value numbe="3" />
</list>

<list />
// []

<tuple>
<value numbe="1" />
<value numbe="2" />
<value numbe="3" />
</tuple>

3. Binaries use XML text entity

<binary>010203ff</binary>
// means <<1,2,3,255>>

4. Pids, ports and references are alikes

<pid node="local" serial="1" creation="0" />
<port node="local" serial="1" creation="0" />
<ref node="local" serial="1" creation="0" />

Now, I can call an Erlang function from Actionscript like this:

Erlang.apply("lists:nth", <list><value number="2" />
<list><value atom="a" /><value atom="b" /><value atom="c" /></list>
</list>, onResult);
function onResult(success:Number, result:XML):void
{
Alert.show("lists:nth(2, [a,b,c]) returns "+result.@atom+".");
}

Of course, there are easier ways to retrieve the second element of the list in Actionscript.