According to various reports, Windows 7 build 7264 has just been leaked and is now available for download on torrent channels.
The continued surge in the build number signifies little else other than Microsoft is still making small changes before the operating system hits the 'final' release to manufacturing stage.
Build 7264 offers a good sign that it's nearing the RTM stage, the product keys used to activate both the beta and release candidate no longer work. This could mean that Microsoft has integrated into this version the final activation key code structure that’ll be used for the final release. Also, the file name for the release is "6.1.7264.0.win7_rtm.090622-1900," which contains three very specific letters.
Interestingly, 7264 isn't the latest build, as a Softpedia reports that there exists a "6.1.7265.0.win7_rtm.090624-1905," which hasn't yet leaked.
If all goes as planned, Microsoft will be hitting RTM sometime this month.