I'm apparently a week late, but great googly moogly - KEEP! PLEASE! It's not perfect (on Android, the nesting is non-existent and the +1 arrows are a little small), but it is head and shoulders above what it used to be. I can read a comment thread in portrait mode without having to squint, zoom, pinch, or rotate my device, which was my biggest peeve about using this site on mobile.
