On Windows Phone (I know, fringe audience, but I love it), I need to slightly adjust the zoom level on the comments view pages. The viewport is slightly narrower than the page's content, by about 15%.<p>But otherwise, and even with that small matter, it's a change that makes mobile use easier. Reading has always been fairly easy on mobile in my opinion, but clicking the right thing (e.g., the comments links) required either zooming or very careful aim. It's nice to not have that challenge any more.<p>I will echo the request for a bit more indentation for child comments. But I also understand the hesitation to add too much indentation given the narrow viewport.