I have just received the first set of data re the number of winners in the launch competition. The answer may surprise you:
We've had many (many!) thousands of entries, and I can confirm that we're past the 1000 mark for Windows Vista winners. However for Microsoft Office we have not quite reached the thousand yet - we're close, but not quite there.
So if you're interested in a copy Office Professional 2007 now's a good time to get your competition entry in! Here's the link: http://www.microsoft.com/uk/launch2007/dev/competition.mspx
UPDATE: It has been pointed out to me that the Office winner position is correct as of about 24 hours ago when the data extract was performed. It's possible that since that time we've had sufficient winners to push it over the limit. Apologies for not making that clear straight away. I've requested another data pull so we can keep updated on the situation