Recent leak of Windows 8 revealed many interesting features of Windows 8 such as Aero Auto-colorization and Taskbar User Picture but there are many hidden feature that come with the leaked version of Windows 8. Few techie folks designed a tool named Windows 8 Tweaker that going to help us to unlock hidden treasures of Windows 8 build 7850 with a single click.
What this tool can do:
Unlock Windows Explorer ribbon UI
Unlock Webcam App
Unlock Windows 8 PDF Reader
Unlock modern task manager
However, here we should note. The tweaking tool build upon the leak version which is a year old ISO, so the tweaking tool may not work when the actual beta or full version comes officially.