Very cool idea. I think you should do it! Maybe RPMs could show the signal strength.
I love the idea of the sky getting darker to match the current conditions. I have always wanted PC wallpaper that did that. There was/is an app for the Mac that did that and I always thought it was such a great idea.
I've seen "dreamscene" on Vista and it's not all that great. I think a subtle animation (like the sky turning from day to night) is so much cooler. That way it's not distracting.
Again, very cool "outside the box" thinking here.
