I wouldn't worry about it much. AMD have been very big on compatibility, especially in recent years. They'll probably figure it out just right.
On the other hand, stock up on lots of RAM in preparation of the upcoming years' computers, people. Now's the time. If you see high-density DDR3 (4 GiB module or greater) on a discount or special sale, take it and don't look back.
Krogoth: There may yet some still a stop-going or nasty bug creeping around [in Windows 7 RC].
Brian_S: Make no mistake, the GTX480 will be the greatest invention known to mankind.