Brilliant! Was only silently wishing for this the other day. Forum's a right pain in the behind to read from a mobile.
It's a mobile app you can use on your phone to view pretty much any forum, it's universal, simple, and much smoother than any mobile templates I could design. It also works well, notifications, signing in, viewing etc.
Download it and look for yourself www.tapatalk.com - go to the bottom of the page, click the button to download for whichever phone system you're using.
I'll have to test run this today, but I'm not sure how the shout box will work with Tapatalk, I'm presuming it won't - so I'll have to come up with something.
Depends really, on the mobile version of the site there aren't any adverts anyway - and people using the full website on their phone, I'm not so sure many will click adverts etc anyway, could be wrong. Also - there is advertisement facility that can be integrated into Tapatalk if need be, I'll see how that goes.