I have been fighting a little with an error of the Wordpress for iPhone application that didn’t let me to use this app with Wordpress.org installation. The error is the following:

Communication Error
Operation could not be completed
(NSXMLParserErrorDomain error 5.)

This error can be easily solvedby just editing the .htaccess file on the root of our blog, adding it a few more lines.

<Files xmlrpc.php>
SecFilterInheritance Off
</Files>

This also solves an XMLRPC error that may happen when trying to post a photo directly from Flickr.

If have another problem, try to find a solution on the great Wordpress oficial FAQ, where there are solutions to another problems.

En Español | Error XMLRPC Wordpress for iPhone