To much surprise, participants of the Windows Vista SP1 TechBeta program were finally greeted with an official download for the first beta, build 16659, of Windows Vista Service Pack 1 on Connect.
There are two downloads available to testers, a full ISO which is approximately 2.95GB for the X86 client, 2.89GB for the X86 Europe (N) client and 3.79GB for the X64 client, or stand alone installers which are approximately 1.22GB for testers to install on their Systems currently running RTM.
No word is out yet as to what changes are included in this build, however we do plan to publish our usual screen shot gallery and findings in just a few hours.
Download:
Windows Vista SP1 (Testers Only)
Forum:
Vista SP1 Beta Discussion
News Source:
In-House
Vista SP1 Beta Released to Testers 
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