Finally, we have a leaked public download of "Windows 8 M1 Build 6.1.7850" - scheduled for release in 2012 the next major update to "Windows OS" will support system-on-a-chip (SoC) and mobile ARM processors. The very first public leak of the successor to "Windows 7 operating-system" has the following attributes :

Build Milestone : M1
Architecture : 32bits (x86)
Build MD5……..: EA2DCFADA6BBA517A0A0649D15E1EB3D
Build String: 6.1.7850.0.winmain_win8m1.100922-1508_x86fre_client-enterprise_en-us.iso
Total Size: 2.45 GB (2,637,101,056 bytes)

Torrents as well as links from file-hosters like Hotfile, Rapidshare, Megaupload, Duckupload are already available for leaked download of "6.1.7850.0.winmain_win8m1.100922-1508_x86fre_client-enterprise_en-us.iso" and more links will get public as the news spreads.