iOS Add new post to wordpress using xmlrpc

[newtoiphonesdk]

I am trying to add ability to my app to post a new article to a wordpress blog. I know that Wordpress has the XMLRPC, but I am having issues in implementing the wp.newPost as there is little documentation outside of Ruby PHP or JAVA.

Here is what I have in my app:

-(IBAction)postNews {
    NSURL *xmlrpcURL = [NSURL URLWithString:@"https://myurl.wordpress.com/xmlrpc.php"];
    NSString *username = @"email@yahoo.com";
    NSString *password = @"password";
    NSString *title = @"Test";
    NSString *content = @"This is a test of posting to the news section from the app.";

    NSString *myRequestString = [NSString stringWithFormat:@"username=%@&password=%@&content=%@", username, password, title];

    // Create Data from request
    NSData *myRequestData = [NSData dataWithBytes: [myRequestString UTF8String] length: [myRequestString length]];
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: xmlrpcURL];
    // set Request Type
    [request setHTTPMethod: @"POST"];
    // Set content-type
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
    // Set Request Body
    [request setHTTPBody: myRequestData];
    // Now send a request and get Response
    NSData *returnData = [NSURLConnection sendSynchronousRequest: request returningResponse: nil error: nil];
    // Log Response
    NSString *response = [[NSString alloc] initWithBytes:[returnData bytes] length:[returnData length] encoding:NSUTF8StringEncoding];
    NSLog(@"%@",response);


}

I constantly get the response:

<?xml version="1.0" encoding="UTF-8"?>
<methodResponse>
  <fault>
    <value>
      <struct>
        <member>
          <name>faultCode</name>
          <value><int>-32700</int></value>
        </member>
        <member>
          <name>faultString</name>
          <value><string>parse error. not well formed</string></value>
        </member>
      </struct>
    </value>
  </fault>
</methodResponse>

What am I doing wrong with this?