Or just number them. All I have to do to change "tags" (loosely analogous, but actually far more powerful...) in my window manager is whack meta-#. The user is free to visualize this however they choose...
Huh. I guess I'm not really getting why the author thinks this "No matter which space I am in, the keyboard shortcut to move to any other space is always the same." is a big gain then. If he really likes arrow keys so much I'm sure he can just remap the shortcuts to get the effect he's describing.
