There's one more thing that just plain isn't there: the Start button in Desktop. If you put the cursor in the bottom left where you'd expect that button, you get a link to the Windows 8 Start screen.

Until its untimely (or timely) death, the Windows 8 start button located in the Metro UI offered access to the search, share, devices, and settings panels. The Windows start button in the desktop ...

A “Shut Down” button also lives here, along with a button to enter the modern-style Windows 8 Start screen. The middle pane, which looks like a grid of apps, is where things get interesting.