Wzor is reporting that Windows 7 will RTM at build 7600.
Released to manufacturing follows weeks of rumour and speculation on when Microsoft would unveil that it has finished Windows 7. 7.7600.16384.090710-1945 is the potential final build number and we're still expecting the company to announce the finalisation of Windows 7 at the annual Worldwide Partner Conference providing there are no last minute recompiles. Microsoft CEO Steve Ballmer is due to hold a keynote on Tuesday July 14 so if Windows 7 is ready then this could be a fitting time for the RTM announcement.
Windows 7 has been in beta development since mid to late 2008 and build 7600 will mark the end of the beta phase and on to servicing and then general availability on October 22.
Update: Please note that 7600.16384 may not be the final build of Windows 7 RTM, this could be increased in the same way Windows Vista was, meaning any sub-set of build 7600 (7600.16385, 16386, etc...) can be RTM.