Here's a story regarding the software.
The site is hammered, the Coral Cache seems to be working fine though.
Here's a few direct links:
Debian Package: pymusique_0.3-1_i386.deb
Source Code: pymusique-0.3.tar.gz
This is NOT about stealing music. This is about protecting people's fair useage rights.
In addition, the software does not "hack" into anything. Using the software, you will still pay for songs from the iTunes Music Store. However, unlike the iTunes software, this free code simply will not add DRM to the song after you've downloaded it.