Oh, what a mess. After years of Windows telling me to get junk of my desktop, the new interface loads my "desktop" with rows and columns of useless junk like "Store".
I'm off now to learn how to get off a particular screen. I'm pretty sure the next task will be to delete the Win 8 preview, but I'll remain an optimistically neutral pessimist.
these are from the beta release, not sure if they are still valid for Consumer Preview:
Windows 8 Metro Keyboard Shortcut Keys
Windows Key Jump between Start Metro Desktop and Previous App
ESC Return to Previous App
Windows Key + spacebar Switch input language and keyboard layout
Windows Key + Y Peek at the Desktop
Windows Key + O Lock device orientation
Windows Key + V Cycle through toasts
Windows Key + Shift + V Cycle through toasts in reverse order
Windows Key + Enter Launch Narrator
Windows Key + PgUp Move Tiles to the Left
Windows Key + PgDown Move Tiles to the Right
Windows Key + Shift + . Move Metro App Split Screen Left
Windows Key + . Move Metro App Split Screen Right
Winodws Key + S Open App Search
Windows Key + F Open File Search
Windows Key + C Open Charms Bar
Windows Key + I Open Charms Settings
Windows Key + K Opens Connect Charm
Windows Key + H Open Share Charm
Windows Key + Q Open Search Pane
Windows Key + W Open Search Settings
Windows Key + Z Open App Bar
Arrow Keys Select Metro Apps Left, Right, Up, Down
CTRL + Arrow Right Move 1 Page Right on Metro UI Menu
CTRL + Arrow Left Move 1 Page Left on Metro UI Menu
Arrow Key, ALT + Arrow Right Move Metro App Right
Arrow Key, ALT + Arrow Left Move Metro App Left
Arrow Key, ALT + Arrow Up Move Metro App Up
Arrow Key, ALT + Arrow Down Move Metro App Down
Windows Key + L Lock Screen
Windows Key + E Launch Windows Explorer on Classic Desktop
Windows Key + R Launch Run Box on Classic Desktop
Windows Key + P Projector Mode – Select Projector Output
Windows Key + U Launch Ease of Access Center
Windows Key + T Launch Classic Desktop with Arrow Key Icon Selection
Windows Key + X Launch Windows Mobility Center on Classic Desktop
Windows Key + B Launch Classic Desktop with Arrow Key Taskbar Icon Selection
Windows Key + M Launch Classic Desktop with Arrow Key Desktop Icon Selection
Arrow Key, App Key Display Unpin Option and Advanced Metro Icon Icons