Spaces was my favorite OS X feature. Very useful and extremely productive. Unfortunately the way Mission Control handles Spaces is a huge step back for me. I can't believe how Apple handled this in 10.7. First they invent something beautiful that many people found extremely useful, and which they incorporated into and depend on in their daily work flow, and then they taketh it away, just like that As many others have pointed out, I agree that Apple need to reintroduce the icon for the current Space number in the menu bar. And we also need to be able to rearrange the order of the Spaces. But the biggest change and let down is that in 10.6, the Desktop and Menu bar stayed static when switching to a new Space. Only the program windows moved. That switch was very 'calm' on the eyes. Now in 10.7, EVERYTHING moves, including the Desktop and Menu Bar. And on top of that, the switch is now animated with a long and horrible animation effect. This effect gets old VERY quickly and also makes my eyes hurt, especially due to the slowdown of the effect at the end of the animation (but thankfully less so when using the keyboard shortcuts instead of CTRL+Arrow Keys). Since in my work I have to switch between different spaces every minute or so, this new way Spaces work is really affecting my work to the point where I will soon, unfortunately, have to go back to 10.6 on my work machine. I'm hoping that Apple in the future could make the user choose if the Desktop and Menu Bar should move or stay static. Or at least give us an option for an instant switch without the horrible animation. Also, I always have a TV window (EyeTV) open. This used to stay static and on top of everything in 10.6 when switching to a new space. Not anymore, now the Eye TV window moves too with the space and thus disappears during the switch. Very annoying. This means that the more often you switch between spaces, the more you miss of whatever you are watching on TV. I can only see disadvantages with having the Menu Bar and Desktop move as well when switching between spaces. And there is definitely a big advantage of having the ability for certain windows, like a TV window, to stay static when you switch to a new space. Why did Apple change this behavior? Please tell me it was not only so that we could have a different desktop picture in each space. That would be crazy. Also, I loved the old grid. I use 9 spaces in 10.6 and the grid makes it very easy to navigate between them. Going horizontally to get from Space 1 to 9 doesn't work for me. If we can't have the old grid back, which if course would be great, then at least make the horizontal spaces loop, so that you can go directly from space 1 to space 9 with the CTRL+left arrow key.