TotalSpaces lets you define a grid that you can navigate using up, down, left and right shortcuts.
An easy to use 2D grid of desktops. Navigate using the cursor keys (by default together with SHIFT-ALT), choose your transitions, and quickly access a birds eye view of your grid of spaces where you can manage your application windows. You can even give your spaces names.
Having a grid of spaces allows you to keep a mental picture of where each of your applications is, and to navigate easily and quickly between them.
TotalSpaces lives in an icon in your menu bar.