Note that Spaces has been introduced by former Be-engineers who are currently employed at Apple.
[...]What about Amiga screens ? of course it is quite outdated by now, but I find the ability to have multiple screens visible at the same time quite useful sometimes.
It looks like this : http://xwinman.org/screenshots/amiwm-matt.gifBasically each screen (or workspace) has a bar at the top, and yo ucan drag it down to see the screen that's below. Screens can still have different resolutions, so the monitor is switched to the topmost screen's resolution and you can have a black border on the right side if the resolution of the other screen is smaller - or if it's bigger, a part of it will be out of view. The little button at the right of the bar allows you to send the screen under the other one. You can also use only this button to cycle between screens while they use the full space.
-- Adrien Destugues / PulkoMandy http://pulkomandy.ath.cx