A recent screenshot on the PC Beta forum suggests that Microsoft may be changing the desktop interface significantly.
According to Neowin, the start menu button appears only when users move the mouse (or their finger) to the left lower corner of the screen.
The basic idea behind the move, besides removing noise from the interface, is to make users use the taskbar and the new charms for all the things they are doing on the desktop. Charms basically appear when you move the mouse to the edge of the screen.
Also noteworthy is the new Build number from this version of Windows 8.
The Windows 8 Beta/Windows 8 Consumer Preview is on it’s way…