I also am seeing the forums just fine on my Android based browser, whether logged in or out.
I use a Samsung GalaxySIII. Android version is 4.1.1 (Jellybean). It turns out I also do QA as my "day job" and recently have come to learn that some things that do run just fine on Jellybean OS do not seem to always behave as expected on Ice Cream Sandwich, which is the OS predecessor. Gingerbread, which preceded that, can be even more problematic.
It seems there is still a lot of variance in the Android landscape that could be accounting for the wide variances in response. Just some thoughts.
Ethuilel Swiftbow - Officer, Bree's Company, Landroval
Avorthiel - Officer, Bree's Company, Landroval
Wordgifted Aladylorea - Officer, Exiles of Numenor, Landroval
Laeraen - Leader, Children of Creativity, Arkenstone
among many others...