Wow I had just finished writing a feedback form regarding a mobile version when I saw this, good thing I didn't hit send yet!
I would definitely love and use a mobile version all the time. This site is VERY slow on my iTouch since there are so many ads and other dynamic features. I believe HeadFi would really benefit from a mobile version because it could help generate a lot more traffic and attract more users. A vast majority of people spend lots of time browsing the internet via a mobile device and I find it painful to try to browse the forums currently.
I'd actually even be interested in helping HeadFi develop a mobile version. While my skills are relatively basic, I have developed a iPhone mobile app and always simply enjoy learning more. It could be a fun project I'd enjoy working on (even for free!).