After much deliberation we've enabled the Tap-a-Talk software to work with the forums. I have also disabled the auto-popup that plagues a lot of the installations of this software so users that wish to use the mobile theme on their mobile web browser can still do so.
If vBulletin can get off their ass and improve their own app, we may look at creating our very own -- however as it stands today it's a very troublesome product that doesn't work very well.
So if you have an iPhone or Android, you can give this a go. Enjoy.
It's $2.99 - and this site receives no funds from it - not sure on the Android's cost.