Request: reimplement "double-tap-jump-back", aka "alt-tab for spaces"

In 10.7-10.8, there was a terminal command to enable a hidden gesture, that allows you to switch to the last accessed space/full-screen app. You would double tap with 4 fingers and it’ll act as an “alt-tab” to the last used space.

I just realised that Apple, in their infinite wisdom, disabled this feature in Mavericks. Can you please reimplement this? In fact, you could improve it much more by allowing a keyboard gesture! That’s extremely useful, because many people find themselves in a situation where they only use two spaces, or a space and a fullscreen app, and switch between them constantly.

Thanks.

This is a nice idea. I’ve put it on the backlog.

Better Touch Tool can do this (I just set it up).