Windows 8 Consumer Preview is now available for download.You can either use a setup or an ISO file to download and install.
Setup file can be downloaded from:
http://windows.microsoft.com/en-US/windows-8/download
and ISO can be downloaded from:
http://windows.microsoft.com/en-US/windows-8/iso
I’ll try to install it on my virtual machine and will post comments about how was the experience. So stay tuned for more updates.