I browse this site from my Iphone all the time, and prefer the non-mobile plain regular site to the mobile version. By quite a bit too.
An app... dunno what it'd add tbh. Don't want to shoot the idea down, cuz I'd love one, but I'm just not sure what it'd add, because most of the time, apps actually *remove* usability, which I'm totally not in favor of.
What I'd like to see though, is bigger page numbers on a mobile phone. I could write us some CSS for that if you want, and I could supply the webmaster with the needed Javascript for mobile phone recognition as well. The question is though; is anyone able to access the core files?