For example, its Windows 8 Start key provides a quick and easy way to get back to your Start Screen, while the App Switching function key allows you to quickly switch among your open apps.
But since the first draft sequence of the human genome was released in 2000, scientists have realized that junk DNA plays a key role in switching genes on and off.
That 0.1 numbering gives a good indication of just how light the visible feature set might be, though -- other than an existing update to substitute the virtual menu button for a long-press of the home key, the interface changes are mostly limited to dedicated buttons for switching browser tabs and between different cameras.