Adrian passes along this link to Internet Explorer 7 for Windows XP optimized for Yahoo!
Optimized might be too strong a word. This version is tweaked a bit with the Internet Explorer Administration Kit to have a pair of custom home pages and different default settings for search engines (Guess ya-who is the default?) But I suspect if you go in and change those settings you’ll end up with a de-Yahooed version that will be indistinguishable from the official Microsoft release. So if you absolutely can’t wait, go get it.
And I hear that the real deal is coming out later today. I’ll have more thoughts tonight.
Ed Bott 
I read about this in some other website:
Simply download the installer, then use soemthing that can extract CAB files to extract all the files in that install program. Then simply run “IE7-Setup.exe” which is the unaltered ie7 install program
It’s out now:
http://www.microsoft.com/windows/ie/ie7/about/default.mspx