Microsoft has made available a couple of Windows 8 ISO images that you can download right now. I already downloaded and installed, the screenshot above is my start screen, as you can see I did not really customize it yet

Here is what is available:

Windows Developer Preview with developer tools English, 64-bit (x64)

4.8 GB

Sha 1 hash – 6FE9352FB59F6D0789AF35D1001BD4E4E81E42AF

All of the following come on a disk image file (.iso).

64-bit Windows Developer Preview

Windows SDK for Metro style apps

Microsoft Visual Studio 11 Express for Windows Developer Preview

Microsoft Expression Blend 5 Developer Preview

28 Metro style apps including the BUILD Conference app

Windows Developer Preview English, 64-bit (x64)

3.6 GB

Sha 1 hash – 79DBF235FD49F5C1C8F8C04E24BDE6E1D04DA1E9

Includes a disk image file (.iso) to install the Windows Developer Preview and Metro style apps on a 64-bit PC.

Windows Developer Preview English, 32-bit (x86)

2.8 GB

Sha 1 hash – 4E0698BBABE01ED27582C9FC16AD21C4422913CC

Includes a disk image file (.iso) to install the Windows Developer Preview and Metro style apps on a 32-bit PC.

Get your downloads going and get your html 5 + JavaScript skills going too

You can download the images here: http://dev.windows.com/

In order to run windows 8 your specs have to be the following:

1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor

1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)

16 GB available hard disk space (32-bit) or 20 GB (64-bit)

DirectX 9 graphics device with WDDM 1.0 or higher driver

Taking advantage of touch input requires a screen that supports multi-touch

If you are a msdn subscriber then there are even more windows 8 goodies available

Windows Server Developer Preview with Hyper-V Virtual Machine (x64) – (English)

Windows Server Developer Preview (x64) – DVD (English)

Windows Developer Preview WDF Co-Installer (x86 and x64) – (English)

Windows Developer Preview Symbols (x86) – (English)

Windows Developer Preview Symbols (x64) – (English)

Windows Developer Preview SDK/WDK (x86 and x64) – (English)

Windows Developer Preview ADK (x86 and x64) – (English)

Windows Developer Preview with Developer Tools and Apps (x64) – DVD (English)

Windows Developer Preview with Apps (x64) – DVD (English)

Windows Developer Preview with Apps (x86) – DVD (English)

And here is a screenshot from Windows 8 of this site in IE 10

The user agent is Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Trident/6.0)

Here is what the new Explorer looks like, as you can see it now has the ribbon

And finally, take a look at the new look of task manager