However, this weekend, I've finally put out new releases of two of my projects: Kcov and Dissy. Kcov, first, is a code coverage tool which uses DWARF debugging information to instrument the executable with breakpoints (it's based on bcov):

The new release, version 5, improves usability a bit by allowing filtering by both paths and patterns (previously only patterns), and has a lot of internal changes which doesn't show outside of the source code. Download from github.
The second project, Dissy, is a graphical frontend to the objdump disassembler. I use it myself pretty much daily, so I think it's the most useful of the things I've written.

Dissy version 10 has many improvements: The workspace can be saved and reloaded later, instructions can be commented, the window size is remembered on restart and more branch instructions are recognized. A number of bugs have also been fixed. Download from googlecode.
Thanks to the contributors to both projects!