Hi Geunsik, what phone do you use? Mobile Safari and Chrome reflow the articles so they perfectly wrap to the screen width. LWN's pages are fast and light. I don't see m.lwn.net being able to improve on the exerpience much! I read lwn all the time on an older Android handset.
Commenting isn't pretty of course... The 2-mile-wide text entry box triggers quite a few scroll bugs, and scrubbing back and forth to try to read what you wrote is reminiscent of 40 column terminal days. It would be nice to see that improved.