On MacOS X 10.5 there is considerable slow-down in the MATLAB editor and other GUI elements. The issue is related to a change in the default Mac Java 2D rendering engine from Quartz2D (10.4) and Sun2D (10.5). This newer rendering engine improves performance for figure drawing, but other GUI operations are slower.
When in a repository directory you can show the name of the currently checked out Git branch in the prompt, making it easier to track where you are (and where you're about to commit).
Install and setup the tools necessary for Android development with Eclipse on Mac OS X (Lion)