I have some debs in my local repository for those who want to build coaster on debian unstable. Both libbakery and libburn are at http://debian.dersoldat.org. The bakery ones are made by me, so if there are issues with those, make sure to contact me and not SID's packager about them. These only exsist for the use of the coaster project at this time. libburn is a different story. Those will someday be uploaded into unstable proper. Test, test, test, all you can. Would like to have most of the issues crushed before upload.
UPDATE: Also just threw up some ppc builds of bakery and libburn. Thanks to Bryan for this. The ppc debs are in the same location as the others.