7600.16385.090713-1255 is confirmed as the official RTM build, according to Steven Sinofsky "today after all the validation checks were met, we signed off and declared build 7600.16385 as RTM."
Windows 7 Hits a New Low
No not its expectation or usage but its lowest boot specification!!!
Screenshots below:
128 MB memory
http://images.pcworld.com/news/graphics/166992-daveblog_ancientw7_original.jpg