The GNUmed team has had Ubuntu packages for some time now. Fortunately version 0.4.7 of the client and v10 of the server will ship with Karmic. Those are pretty stable versions and hopefully this time it is diffent from Jaunty where GNUmed would crash on every user.
None of the core developers use Ubuntu on a day to day basis. Most of them use Debian which make Ubuntu packages a breeze since one can simply convert the Debian packages.
As more OSs and distros are supported the packaging job puts a heavy burden on a few people.
The GNUmed team is looking for a volunteer to spend around 30 minutes per release ( every 3 months or so) to Ubuntunize the Debian packages.
The procedure is laid out in the Wiki in the Ubuntu section. Any help is appreciated.