JSON vs XML feeds on iPhone

Reading from a JSON feed is pretty easy on the iPhone, I've had to recently create an app that parses XML data, and found this to be much more cumbersome. While timing the performance I realized that parsing the data was taking as long to do as the actual retrieving of the data. Part of this is because there isn't any native XML parsing on the iPhone. I'm trying to get all feeds we create from now on to serve data in multiple formats, just to make things like this easier in the future.