I'd like:

- To be able to see the n commits that someone on my team did, all as one big diff.

- To be able to see a paged version of git blame to walk back through a file to see who changed each line back through time and how it changed.

- When manually resolving a merge conflict, I'd like to see when each of the conflicting versions was written and by whom, along with the commit messages corresponding to when each of those previous areas were written.