Released BETA of Windows 7 (Next Generation OS) have been Downloaded by Millions of people.
Here is some of the Keyboard shourtcuts for Windows 7 users.
Win+UP Arrow – Maximize the current window
Win+Down Arrow – If the current window is maximized, restore it; if the current window is restored, minimize it
Win+Up - Maximize Window
Win+Down - Minimize Window
Win+Left - Snap Window to left
Win+Right - Snap Window to right
Win+Shift+Left - Jump to left monitor
Win+Shift+Right - Jump to right monitor
Win+Home - Minimize / Restore all other windows
Win+T - Focus the first taskbar entry, similar to ALT +TAB
Win+Shift+T - Same as above in reverse order
Win+Space - Peek at the desktop
Win+G - Bring Gadgets to the top
Win+ [Num] - Launches the numbered app running in the Super bar
Win+P - Connecting displays to computers and switching from single monitor to dual-display
Win+X - Mobility Center
Win + + – Zoom in and out of Windows
Win + – - Zoom in and out of Windows
Alt+P - Show/hide Preview Pane in Explorer
Win + Tab - Windows Aero Task Switcher
Shift + Click on icon (Taskbar) - Open a new instance
Ctrl + Shift + Click on icon (Taskbar) - Open a new instance with Admin privileges
Shift + Right-click on icon (Taskbar) - Show window menu (Restore / Minimize / Move / etc)