While such wrappers around git always pique my interest and and are created with noble intentions, I am yet to find a team of developers who use such tooling around git.
There are dozens of wrappers and workflows around git that have been created in the last 3-5 years and frankly it only complicates the shared vocabulary that developers use when communicating with one another. Also, distribution of such wrappers is usually in the form of rubygems which, although a low-barrier distribution mode, is complicated to use with rvm or rbenv of existing projects .
The only git-related tool I like is tig - it's an interactive git log, where you can scroll through commits and view diffs (and lots of other things) without having to copy+paste or use awk or whatnot. This tool (git-smart) seems like... I don't know. For me, I'd rather have my team suffer the learning pains of git than rely on a tool that, in some cases, will fail and leave them even more helpless than they were when they struggled to learn git.
I do recommend checking out tig though; that's the one that I have kept. It's also not a gem, it is available through yum or apt (and probably pacman, brew, etc).
