You can just manipulate the PS1 variable, something like this might help you:
$ PS1="$PS1 [`git diff --shortstat`]> "
The result should be something like this:
rlegendi@localhost /.../gitrepo (master) [ 1 file changed, 3 insertions(+)] >
So basically you should add this as in your profile file (either in the Git installation directory, usually under c:\Program Files (x86)\Git\etc , or in your home directory). This way you can create a more enjoyable version.
Take a look at PROMPT_COMMAND and various git diff switches (e.g. --numstat , etc.).
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