I'm not really sure how exactly to articulate this, but I'll do my best.
Just because you've been pestering us like crazy to get this done doesn't mean that it will. I'm not denouncing the fact that Tapatalk is probably the ideal native application to view forums, but it's not a switch that we can just flip. We have to get in touch with the person running our server. They have to be willing to not only install, ensure quality assurance, and create branding for us, but do this all for free. While we may ask for it to be done, they could easily point us to the browser version and be done with it.
Take it from someone that works in the consulting/developer/sales for enterprise software. I can consult a client that a product is best for them, but they may decide that it's too expensive for them to pay us to implement. We have an alternative option for them. There's an alternative option here for you to use for the time being as well. It stands on a platform that is browser based, therefore it never needs to be updated like a native app, and is one less thing that we need to take care of. It doesn't have the flair or functionality of a native app like Tapatalk, but it gets the job done. For free (both for us and you).
If I were the consultant, and I have a lot more information about what is going on in our background and how our infrastructure is standing right now than you do, then I would say that we are ideal where we are now from a mobile standpoint.