Implemented in Kiln 3!
Why does Kiln not support the use of SSH keys for repository authentication? I'm not entirely comfortable with putting passwords in repository URLs; in part, because it inhibits changing them, in part because it means that users' fogbugz passwords are potentially compromised).
Edit: This may be the same as asking: why is http(s) the only protocol supported for repository access?
Also, does this mean that that CI server that pulls code from the repository for test & release has to have a fogbugz/kiln account and password?