That really doesn't matter if it'll be rebuilt, right? It'll still be 7600, even though the subbuild will be different. Everything should be the same.
Yes there will probably be another build, but what difference will that make... a few drivers or slight changes?
Well, if it comes another build, it doesn't really matter am i right? Because this one doesn't got the timing things like the RC did etc. so it should just work as fine as a the final one.
what is strange is that files hour is 09:53, definitive release hour files will be 12:00 like most of MSDN releases. but i think we have the RTM code here.