@Cammy
Wow, great post. Thanks for taking the time to put all that information up.
I just have to agree with the screen dragging comments. It's a great feature to have and Amiga was about multitasking. Having multiple screens is just another way for us to take advantage of that multitasking.
There are lots of companies out there trying to work on a "3D" desktop, most of which are just screens on a cube, you hit a hotkey and the cube rotates to the next screen. But, really, that's was screen dragging is, a 3D desktop. You have your desktop and you can move windows in 2D, but more screens adds more dimension. Don't know if that makes sense.