With Mammoth, we’d like to see a dynamic flexible menu bar that can shrink and grow at will. It reserves more space for windows at the top of your display and hides a giant section of the menu bar that often serves no purpose. Both the right and left sides of the menu bar would collapse into small pill-shaped boxes that float on top of your content rather than being locked to the corners. If an app has more menu bar items, the pill can expand and vice versa. Lots of modern Mac apps that are making their way over from iOS don’t even utilize the menu bar that much… More here.
Excellent concept. It’s the little touches that can mean the most.