ReactOS 4.0

The ReactOS guys have just released a Alpha version of ReactOS operating system. For those unfamiliar with ReactOS, it's an Android-based, free, open source, operating system that can run on pretty much anything and give you full desktop function.  It's quick and portable and worth checking out if you're looking for an OS that can run on pretty much anything and best of all is free! ReactOS can be found here.

Imagine running your favorite Windows applications and drivers in an open-source environment you can trust. That's ReactOS. Not just an Open but also a Free operating system.