This is more of an application “plugin” than a stand alone app.
It requires a plugin system for your mac to work, but if you haven’t checked out Simbl yet, or you haven’t found a great use to install it, Visor might be the application that puts you over the top a little.
It doesn’t get much more geeky than the command line, and if you get your socks all tied in knots over some terminal love, then you MUST have this application. It lets you bring up the terminal from any application you’re in. You can assign a shortcut key to the operation, and upon hitting the key combo the terminal opens from the menubar. It’s really handy if you spend a lot of time jumping in and out of the terminal.
See it in action…