Well, it took me a while to dig out a mouse driver and figure out that the easiest thing to do was just plug a serial mouse right into the MB. Anyway, my main DOS box is now pointing device enabled - much to my chagrin.
I can now report that DILLO works pretty well on a P-133 with plenty of RAM. Bookmarks work, and the frame can be scaled, and it renders small pages functionally. The look of the pages is not as easy to read as Arachne, but I think I saw that it has user CSS (which is actually a W3C browser requirement) so if I wanted to, I could probably make things look any way I want.
The cursor becomes non functional while the images are rendered and it takes a long time. Many (10 or more) times slower than Arachne, which was admittedly pretty fast in it's day and only slightly slower than Netscape. I have DILLO open on a Linux system with several pages open all the time, so I tried a couple of those in DOS. Slashdot.org is fairly usable, but Spiegel.de appears to be much too big for it, and Arachne as well.
Since the port is being worked on as we speak, the speed (or other functions) could easily change dramatically, so I'm not taking this test too seriously. No matter, it is already a very functional browser for DOS, and that is something to celebrate!
So now I've got three working browsers in DOS. Two that display images, and one text only. I just tried Spiegel with the Lynx text browser and it's fast and easy to read, so I'm not sure the other two are going to get much (if any) use in the long run.