This is a cool idea: Getting Things Done with Workflows and Quadrants, but I never look at my wallpaper when I'm working, because I'm busy actually doing stuff. What I need is a single window that combines email, chat, my to-do list, and my calendar.
Actually, I have that. It's Gmail with various lab widgets in it. The only thing missing from it is my work email, because that's stuck in Lotus Notes. Sigh.