It seems Microsoft has updated its ever looking Blue screen of death in windows 8. Sources from internet shows the new updated BSOD and its friendlier text shows as
Your PC ran into a problem that it couldn't handle, and now it needs to restart. You can search for online SYSTEM_SERVICE_EXCEPTION.However, this is the BSOD from the recent released version "Developer Preview windows 8". Microsoft may further imporovise BSOD screen and will be available in the future updates.
Alt-Tab - flexibility to jump to another app while the current app is still on background.
Windows + C -> Charm menu, as does hovering over the lower-left hand corner of the screen
Windows + F brings up the Search screen, though simply typing (when on the Start screen) is more convenient
Microsoft has relased finally the developer preview version of windows 8.We can have our hands on it and play around and test some features around it.