title: What are advantages of using JSON/XML over a plain string of variable format?
body: <p>What are advantages of using JSON/XML over a plain string of variable format?</p>
  
  <p>We have an iPhone application where we are receiving a string of variables as a response to our post to an url rather then using JSON/XML from the server.</p>
  
  <p>What would be some of the advantages to us being passed the data in JSON/XML?</p>