I promised it some time ago and now it has been done: Debian packages for the development tree (1.1 series) of Bluefish are ready for Debian users and called bluefish-unstable. The packages can be installed along with the stable version, so you can safely test new features and give us feedback and bug reports.
NOTE
The packages cannot be (re)built on Etch, because debhelper version 5.0.57 or higher is necessary. I will fix this part of debian/rules soon, so it can be (re)built on Etch too.