No, the "Mobile" link filters for "mobile" news/reviews, just like the "CPUs" link filters for CPU news/reviews. AFAIK there isn't (yet) a mobile-specific version of TR, though certain people have promised one is coming eventually (and now that the site redesign seems to be mostly complete, maybe that's finally sooner rather than later). I find the "news" version of TR ( techreport.com/news.x
) works better than the normal frontpage on many mobile devices.
The browser in the Kindle is labelled "experimental" for a reason, and from what I've seen "mobile-specific" sites (or stylesheets) don't render any better on it than normal sites do (try the bbc mobile site
for example). It's nice that the browser is there for use in a pinch, but it doesn't really qualify as a feature AFAIC.