We know how important it is for the hardware and software you use today to work with Windows 7. So we're doing several things to help.

We're working with our partners to help ensure their products will work with Windows 7. You can expect that most of the products that work with Windows Vista to work with Windows 7.
If you're buying a new device or application, look for the "Compatible with Windows 7" logo. These products have passed tests that Microsoft designed to install readily and run reliably with Windows 7.
With Windows 7 Professional or Ultimate, you'll be able to run many productivity and business programs designed for Windows XP. Some additional software will be necessary and it will be available free-of-charge as a download from Microsoft.