A terminal that can be accessed anywhere in the system through a simple hot-key combination.
First, you'll need to install SIMBL, which is a plugin architecture used by Visor. Once that's done, you should place Visor.bundle in ~/Library/Application Support/SIMBL/Plugins. After this, simply (re)launch Terminal.app to see the Visor menu item.
You're almost ready to go! To configure your keyboard trigger, select the Visor menu item and then choose Preferences. Edit your keyboard hot-key and you're done. You can now trigger Visor with your hotkey from any application to open a terminal session.
When it's time to hide Visor, you have several options. You could, for example, re-trigger it with your key-combo, click off the Visor window, or even enable "Visor hiding on Esc" in preferences. You could also use the logout key-combo (control+d) to close the Visor window, or type "exit" in the running shell to close it.
Overall, Visor for OSX is a great choice for anyone who wants quick access to a terminal session. Give it a try today and see how it can improve your workflow!
Version 1.9.1: N/A