Windows 8 "blue" 6.3.9364 leaked to public
Name: 9364.0.FBL_PARTNER_OUT13.130315-2105_X86FRE_CLIENT_EN-US-IMP_CCSA_DV5.ISO
Size: 2,63 GB
HASH: 179B588DFC21CCF4B76B7E9BE505A51D00F52D6F
Currently only 32 bit version has been leaked.
Features lots of unfinised buggy things and some improvements at Modern area.
In case you are interested, I have posted changes list and sreenshots here