I manage a number of student projects at the University of Illinois. I can integrate Indifference into our current code review process if you need an early test group. We currently use Github pull requests. My email for the signup list is similar to my HN handle, jtfairbank.

Feature requests:

* A signoff list of people who've reviewed the pull request and feel its ready to accept. This'd be helpful as most of our work is independent / 'remote' (we're not all in the same room together).

* Works on most platforms, or is web based. Each student has their own personal setup that we need to accomodate.

* The ability for a Pull Request submitter to link to other resources, such as documentation, Trello cards, various Github features (code files and issues come to mind)... Basically, it'd be nice for the submitter to provide a short description of how their changes affect the software at a high level. I find most of this exists in our other documentation. Currently we just add a description with the links to the PR description on Github, but maybe you can improve on that.