I released the Pac-Drive utility today. It can be downloaded from
http://www.zumbrovalley.net/pacdrive/Currently, it is packaged as three parts
1) The main (command-line) program, pacdrive
2) A (currently VERY) simple GUI for testing
3) A Python library for controlling the pac-drive
There is more work to do, but it is quite usable at this point.
Currently, just a tarball is up, so you will have to compile it yourself. I'll be adding Debian packages soon.
Also, for those following along, the ipacutil GUI has had a number of bug fixes recently (thanks for the testing, Tiago). There are also some new features and improvements being worked on.