Look what I just found:
Windows Anytime Upgrade (WAU)
Windows 7 will provide end users with a quick and easy upgrade process. End users who wish to upgrade to a "more premium" version of Windows 7 can purchase an upgrade key to unlock additional features. Additional details will be forthcoming in the November update.
Update @ December 15, 2008 : Microsoft's OEM partners have chosen not to support WAU. Therefore, Microsoft will directly provide WAU to end-users by :
* Supporting the end user through the upgrade process and digital upgrade key delivery, and
* Supporting the end user after the upgrade. In other words, Microsoft will assume the responsibility of supporting Windows 7 after end user upgrades.
* Redirecting support calls from end users who have upgraded through WAU to Microsoft.
Tech Guarantee
Microsoft is planning to offer a Windows 7 Tech Guarantee Program, where end-users who purchased Windows Vista systems will have the option (for a limited time) to upgrade to Windows 7. Additional details will be forthcoming in November, 2008. At this moment, the following features have been proposed :
* Eligible Editions : Windows Vista Home Premium, Windows Vista Business, Windows Vista Ultimate
* Eligible Languages : Wave 0 to Wave 4
* Available Upgrade Paths : Like-to-like product paths only (e.g. from Windows Vista Home Premium to Windows 7 Home Premium)
Once Windows 7 is released, OEMs can send Windows 7 upgrade disks to end-users who qualify. The Windows 7 installation will require end-user activation.
Update @ November 22 : The anticipated Windows 7 Tech Guarantee Program will be revealed by next week. However, our source says that instead of the usual 6 months upgrade period, Microsoft may be considering much shorter periods of 60 days or 90 days.
Update @ December 15 : Microsoft has tentatively scheduled the Technical Guarantee Program to begin on July 1, 2009. The complete program eligibility dates will be provided at a later date.
Microsoft will announce, by April 1, 2009, the program eligibility end date and if the program eligibility start date will be moved to a later date.
Microsoft's OEM partners have been asked to send in their feedback of the draft Tech Guarantee Program by January 9, 2009 as Microsoft intends to provide a final Program Guide no later than January 30, 2009.
Tech ARP - ED#105 : The Latest Microsoft Windows 7 Roadmap Rev. 1.5