For my part, I started using git at the command line because most of the Linux GUIs were pretty weak. They may have gotten better since I looked (1 yr?) but at this point I'm comfortable with the command line interface.
Also, I jump between Linux at work and OS X at home, and the git workflow is the same on either if I am using the command line.
Also, I jump between Linux at work and OS X at home, and the git workflow is the same on either if I am using the command line.
The Mac GitHub app seems really nice, though.