For now, I find it…awful. Okay, I’m rude, but I’m wondering how it can help to do multitasking, in what this new design is useful? And about the nice argument, I don’t find it nice on the screenshot. But I did not used it, for now, so perhaps it’s useful. I hope this project is better than what I think right now.
EDIT: It is a bit like Windows Flip 3D, no?