You know, sometimes things just work. They get whittled way at until we end up with a very refined endpoint. Just look at cell phones. Black rectangles as far as the eye can see. For good reason. I'm not saying don't explore new avenues ( foldables, etc. ), but it's perfectly fine to come to settle into a metaphor that just works.

The Windows 95-XP taskbar is good. Everything else has been downhill.