As a student pilot, computer technician, and hobbyist, I'm rarely at home on my computer. I tend to browse web forums, including this one, almost exclusively via my iPhone. Unfortunately, most forums aren't mobile-browser friendly, wether using Chrome, Safari, or Opera. I can visit this forum, but performance is laggy and the menus not so readily navigated on a small touch screen.
A solution for this, that would permit your members to access your forum when on the go, is a forum app like ForumRunner or Tapatalk. I use Tapatalk a lot more because I find it more stable and intuitive.
There is no cost to you to register your forum with Tapatalk, and there is a small purchase price for users to get the app from iTunes.
Please consider trying this out so us mobile users can access your forum when we're not near a PC. I use it often when I'm on the road (not while actually driving though) to browse a Canadian pet rescue forum, and I can get the most recent info on requests to transport.
Take a look at http://www.tapatalk.com/
to learn more.
Here is a screen shots of the main page from my own iPhone.