On December 5, 2008 - as promised - Microsoft has made the Vista SP2 beta publicly available. Early adopters can install it now and take advantage of improvements like 10% better power saving, reduced resource consumption in sidebar gadgets, Windows Search 4, and a long list of security and bug fixes. According to Wired's post, you should be aware that you'll have to uninstall the beta in order to install SP2 final once it's released. Currently Microsoft is anticipating doing that some time in April 2009. If you're looking for more details before grabbing the file, check out PC World's article Vista SP2: Six Things You Need to Know. Downloads for both 32 and 64-bit users are available at the Microsoft Download Center. Instructions are also available here for users wanting to install SP2 through Windows Update.