Richard.... the iphone version of MobileOrg is maintained by Richard Moreland.  Look at his MobileOrg IOS support page here:

http://mobileorg.ncogni.to/support/

It's best to contact him via email, I don't think he follows this list much.

On Wed, Feb 8, 2012 at 6:54 AM, Richard Riley <rileyrg@gmail.com> wrote:

I was wondering Carsten if you actively use the iPhone version? I posted
some issues here but go no feedback - I cant get it working following a
config error in my set up - after correcting it and then syncing the
phone it falls over as described in my earlier post.