A leaked early built version of windows8 gives insight of the upcoming OS from Microsoft. The most amazing feature of Windows8 OS is its portability. The Windows8 desktop can be carried on a USB thumb drive. The few official details released by Microsoft on Windows8, but majority of them seem to be rumors.
Microsoft has developed Windows8 taking tablets into consideration. Windows8 can work with ARM and x86 processors. It will also feature a multi-touch gesture interface. The concept of portable workspace allows you to carry a boot able copy of the Windows8 OS.
It requires a minimum of 16GB USB drive to carry your complete bootable OS along with tools needed for administrating and troubleshooting. Earlier Linux has offered the OS on USB capability.