If you were a member of the Microsoft Office Product Evaluation TAP, you should now have access to the Microsoft Office 2007 System Service Pack 1 Technical Preview. Just log into Connect, and check under Microsoft Office. This is going to be a short one preview. Microsoft is only accepting feedback for about 30 days, so start downloading now!
Microsoft, Microsoft Office 2007, SP1, Office 2007 SP1, TAP, Technical Preview
Source:→ Windows Connected