[tshering]

I tried some zim files. Yes, they worked. But evidently, I had too high expectations.

One point is that internal links do not work (at least with those zim files that I tried, one of them being wikipedia_en_ray_charles.zim). They had either no effect (or brought me to the first page of the current document itself), or they delivered kind of empty content of varying length (the ones I saw were between 3 and 16 pages). Maybe zooming or panning might have led to something? I should have tried, but I did not.
My main problem with the inability to follow links is that if the software does not support the keyboard needed for the language of the wikipedia, you cannot access its contents, or only a very small fraction of it, even if the opening page contains an extensive index with links. (I know it is possible to patch the keyboard. But the number of alternative keys is rather limited.)

The other problem I had was that, with the exception of the Hindi Wikipedia, all showed in the library with the same titles an authors (Wikipedia, or Wiktionary), so that I had to identify them by their file size. One could say I should blame the meta data of the zim file, but still the result is rather uncomfortable.