Any experts on XML parsing in Android here?

People have asked me to add a function to Phone Schedule that would allow users to back up and import their schedules to and from a file. I'm currently working on it and have a question about XML parsing, particularly about the behavior of XmlPullParser on API11+ and pre-API11 versions of Android. I've published it on StackOverflow and set a bounty of 50 reputation points on it. They can be yours if you can help me figure this one out. All help is greatly appreciated.