Unity (Compiz) Exposé should be mapped to the Mac exposé key for Mac installs of Ubuntu 11.10

[Mark East]

This is more a wishlist than bug I suppose but it should be simple to implement. I installed Ubuntu 11.10 on my Macbook Air earlier and after booting into my new system I noticed all the special keys were mapped nicely to their related function except exposé. As Unity allows this by default (alt+w) I think it would be good for Mac users to have this mapped to this key by default as it is a very useful function. It also provides them with a familiar interface to work with, making transition to Ubuntu a bit easier. I know this can be set after installing ccsm but the user shouldn't have to do this.