Play Win8 consumer preview version must know the shortcut key: Win+X

Windows8 brings a new experience, more performance in the Metro interface, users who use touch devices will experience completely different Windows. But for the average user, there is a feeling of efficiency drop only when the mouse is used. At this time, it is necessary to ask for a shortcut key.
The use of shortcut keys can greatly improve the goodness of Win8, and the efficiency is much higher. Microsoft also added shortcut key reminders on the Windows window to help users familiarize themselves with various shortcuts.
The shortcut for today's debut is Win+X, and the Win button is the Windows logo. Some functions will be popped up in the lower left corner of the desktop. Programs and functions, command prompts, control panel, Windows Explorer, search, running, desktop, etc. are all coming out. Is it convenient?

Start menu button disappears, so that many users are not used to, Microsoft is not trying to take shortcuts Win + X slightly compensation under users?