It seems as though the forum is not available in the Tapatalk app. Any plans on making it compatible?
Or does the forum already support any other mobile app?
The problem is that there are so many competing systems available that you could not cater for all of them. The forum delivers HTML via the PHP server side language and most device's operating systems provide a web browser which should be able to handle something as simple as HTML.
I don't know how anyone can properly look at a site like this from a phone. It needs a large screen to look at drafts etc.