When the feature was first announced, I didn't get it. After reading an article on Appleinsider about Spaces, I still don't get it. It's so similar to expose. Sure it helps with the clutter when having multiple windows open, but in order to get to another app in another space, you move around much like expose, Space have navigational shortcuts. Yet, I don't understand the utility of this feature. For example, assume that in one space I'm working on my school project/assignment, in another I'm using a web browser to check out news, events, youtube, Macrumors.com, etc. In yet another I'm doing work for my employer. so far so good. I start in space 1 working for school. Getting tired. Want to check out Macrumors. I hit F8 or use any of the keyboard shortcuts, and bam, I'm in space 2. I read something interesting that I can use for my work project. Bam! I'm in space 3 using any of the shortcuts. Without spaces, to this I could have everything mentioned above open, i.e multiple browser windows, text app, excel etc. I'm in Word wanting to check out macrumors. Click an expose shortcut, see macrumors, point the mouse and Bam! I'm on macrumors.com. My conclusion: What do I need spaces for? Please, someone explain the usefulness of Spaces to me in plain English.