The Windows 7 Blog announced the following Win7 release schedule. 

ISV (Independent software vendor) and IHV (Independent hardware vendor) Partners will be able to download Windows 7 RTM from Microsoft Connect or MSDN on August 6th, 2009.

If you are a Volume License (VL) customer with an existing Software Assurance (SA) license you will be able to download Windows 7 RTM in English starting August 7th via the Volume License Service Center (VLSC). The rest of the languages for Windows 7 RTM should be available within a couple of weeks after that. 

There are a few ways you can get Windows 7 RTM. IT Professionals with TechNet Subscriptions will be able to download Windows 7 RTM in English on August 6th and remaining languages by October 1st.

Developers with MSDN Subscriptions will be able to download Windows 7 RTM in English on August 6th and remaining languages by October 1st.

Windows 7 will be in retail stores and shipping on new PCs starting October 22nd. If you pre-ordered Windows 7, it should be delivered sometime around the October 22nd timeframe (depends on the retailer).