New
#1
that hacked Chinese/ Russian build 7106 is not digitally signed, however it looks like a digitally signed English build has been finally leaked today (14th April)
7106.0.090408-1623_x86fre_client_en-us_Retail_Ultimate-GRC1CULFRER_EN_DVD.iso
7106.0.090408-1623_x64fre_client_en-us_Retail_Ultimate-GRC1CULXFRER_EN_DVD.iso
google "windows 7 build 7106" and read the first result.