Microsoft has confirmed that Windows XP Mode has gone RTM and will be available for download on October 22nd, 2009. For those who are not familiar with Windows XP Mode, it is designed to run inside of Windows 7 Professional and Ultimate editions. The Microsoft blog entry also states that:
Windows XP Mode is designed to provide small business and mid-sized businesses running Windows 7 Professional (or higher) the ability to run Windows XP productivity applications that may not be natively compatible with Windows 7. We expect many Windows XP applications to be compatible Windows 7 however Windows XP Mode is meant to serve as an added safety net so small and mid-sized businesses can migrate and run Windows 7 without any road blocks. Windows 7 Professional is designed to meet the needs of small and mid-sized businesses.
I am using the beta version of Windows XP Mode on Windows 7 Ultimate RTM and it works very well. As someone has noted before, the hardware drivers are generic. This really is for businesses and not for gamers. 🙁