I downloaded it and played around a bit. the only pic that i had at this time was one that i posted here at biorust (i took it with my cell @ 1.3 mp) these are my findings so far:

this is the original pic.

this is the psuedo tonemapped image. i didnt mess with any of the sliders. and it seems a lil grainy. but it also reduced the filesize by 1/2 when i saved it. the pixelcount remained the same.

this was the original image after a few tweeks in photoshop with only the levels sliders.
more later. thats my 10 cents.