"The experts" (or rather, "the expert") doesn't have the game and is not interested in it (having the native original one), so...
Also, no work until next year.

Now, I would be impressed if a game actually cared about the DPI values.

To build preenv without scaling at all is just a matter of removing lines from src/libsdlpre/config.h

(I added the options recently to make running preenv easier on other devices).

Note also that despite I call this "scaling" there's no scaling at all. The game runs at the native N900 resolution, which is the reason they look unusually good and also the reason for the "scaling problems".