djvu: interesting?

[brasheardj]

DjVuLibre (http://djvu.sourceforge.net/) is a GPL'd document
compression system. It includes: 
c44: a wavelet-based continuous-tone image encoder (a la JPEG-2000)
which is built around the library included in the package (as is
djview, the sample viewer).

I did some testing with USGS TIFF-format DOQs (I used the images
available from PASDA http://www.pasda.psu.edu).

I tried several of these images and found no degradation.
Representative compression was:
33130126 braddock_pa_sw.tif (ZIP-compressed GeoTIFF)
45946667 braddock_pa_sw.tif (uncompressed GeoTIFF)
5552480 braddock_pa_sw.djv (DjVu IW44 compressed, default options)

Is this interesting at all?