I actually don't hate the mobile site. Infinite scroll is convenient when you want to read and not click to load the next page. Perhaps there's a way to deal with the complaints/problems with infinite scroll without removing the feature (yep, I said feature! After all, it does make it easier to read when you can just keep scrolling).
Seconding wiki. And adding left/right arrows for single page forward/backward maybe.
Also, wish I could see more detail about posters, at least their post count or something. That sometimes provides context for their posts.
On another note, related to mobile.. why doesn't TalkMail play well with mobile? The way it's formatted is fixed so it's impossible to read without zooming and panning all over on a phone.