I've already addressed this like 5 times the past couple days.
People, relax. This is exactly why companies don't give out hard dates on releases in advance... people get paranoid when they know a date and don't have information that suits their whims.
This is normal software development... Mango was finished July 26 and released to the public just 7 weeks apart. Folks, guess what?! We're at the 7 week mark RIGHT NOW, this week.
Now, if they have several, major bugs to squash... maybe they'll run a bit tight, but remember that Windows 8 had a single showstopper bug that delayed them a week and yet they still RTM'd as expected.
Relax. Goosefraba! This is normal, and the launch will happen just fine. I'm not just saying this as a ****** or anything, this is coming to you as a IT guy who deals with software releases all the time.