Actually the best place to post for any IPad and/or iPhone problems is to the IOs forums where the developers are monitoring. Here's the link for the iOs forum for the WordPress app so you can post there and make our WordPress developers aware of your iPad issue. http://ios.forums.wordpress.org/forum/how-to-and-troubleshooting
If you don't have a username account at WordPress.org, click http://wordpress.org/support/ and register one on the top right hand corner of the page that opens, so you can post to to those forums.