@darius This doesn't directly help you, but in case it helps a little: I have a script in my ~/bin that contains:

git log `git merge-base --fork-point master`..HEAD --format="format:%s%n%b"

which just prints all commit messages for the current branch. I can run it as:
glogbranch | xclip
or
glogbranch | clip (on cygwin)
to dump it into the clipboard for pastin'.