Windows 8 Release Preview

ISO images can be downloaded here
WKD 8 Release Preview

Update: not all pdb are uploaded yet - for example on win32k.sys I got:
SYMSRV:  http://msdl.microsoft.com/download/symbols/win32k.pdb/DB9745D3386F4192BB1B0B65936BCD5F2/win32k.pdb not found
he-he