Update: Windows XP Service Pack 2 Network Install download (thanks Didou).

Available soon, Windows XP Service Pack 2 (SP2) will bring users the latest security updates and innovations from Microsoft. It will establish stronger security settings that help defend against viruses, hackers, and worms and will provide unique new security features designed to make it easier for you to protect your PC.

Microsoft has finally made available XP's Service Pack 2 this morning however the update is currently not available as a stand-alone download or through the Windows Update website, instead it's been made available through Automatic Updates and to beta testers only, we assume this has been done in order to control the popularity of the file somewhat.

I wonder though, wouldn't it be about time bittorrent (or something similar) is used even by a big corporation like Microsoft to ease patch availability? Service Pack 2 weights in at 266mb.

Here are a few useful links:
Windows XP Service Pack 2 (SP2) Support Center (thanks Rick).
Order Windows XP Service Pack 2 on CD.

More information from Activewin:
Final testing is complete and at 10:08am this morning we signed off on build 2180 as Windows XP Service Pack 2, releasing it to manufacturing. The final build will be available to beta sites immediately at https://windowsbeta.microsoft.com/download/dl3.asp. You will find both English and German versions there, Japanese will follow early next week. Next week the service pack will be available on the Microsoft Download Center for general download. In the interim we're making the update available to you via the beta web site. If you are running RC2, or any other build released to beta sites, we invite you to turn on Automatic Updates, and starting on August 10th your system will automatically download the express version of Windows XP SP2. For typical home users this is about a 75 MB download; for those on RC2 it should be less than 30 MB.