json v. xml

Hi,

It seems a lot it is being said about JSON being a better browser format  
than XML. Dare Obesanjo makes the best points in favor of JSON - mainly  
that you can cross domains easily.

But with JSON:

- how do you get the parent object?
- how can you go directly to an object? (perhaps it is deeply nested in an  
array, in an object, in an array)
- how do you transform it for a view? do you write your own transformation  
language each time?

Does any of the above matter for JSON?

Will an eval'ed JSON object(s) eventually look like a DOM object?

-Rob