Here is yet another probable Windows 7 RC build leaked onto torrent portals, the latest Windows 7 copy to leak has a build tag 7106.0.090408-1623 but it is still to be verified as an genuine leak and not somebody faking the build tags, the screenshot below shows a Chinese version but English versions of the leak are also reported to be available and should soon spread like fire, the following English version build strings are reported to have been leaked and seen in wild :

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