Windows 8 Release Preview was released few days back and you can now download and install this version of Windows 8. With the final version of Windows 8 expected some time in October, you can get used to the new OS with the release preview. One important thing most of us think of before installing is the compatibility of hardware and software which you were using previously with Windows 7 or other versions. Microsoft has made available a site where you can check the compatibility of popular software and hardware with Windows 8.
To check if your device or software is compatible, navigate to http://www.microsoft.com/en-us/windows/compatibility/en-US/CompatCenter/Home
The compatibility center has categorized into programs and hardware and also has sub category.
For any selected product you can see the detailed listing including the links to manufactures site and also driver site. You can also confirm if the product is compatible using the buttons.
The compatibility page has vast number of software and hardware listed.