Nope, the arrow on the right does nothing at all -- only the 'invisible' link-graphic below it. I'm guessing there's a problem with the image-as-link-anchor, though that functionality's fine in other sites.
Also, fwiw, I did try clicking on the number of posts... and that did nothing at all, as...
The arrow doesn't do anything at all when I click it, Sa'areah Sedai, lol, and the title takes me to the first page. I'll try the reply number and report back, though! Thank you. :)
A thing I've been noticing about the mobile site - navigation between pages of a long thread is very difficult!
After some poking around, I accidentally found a way to access the most recent page -- there's an invisible graphic linking to it below the name of the most recent poster that can be...