Not only was yesterday the day the Tech Refresh of Office 2007 released, but the beta for the second edition of Visual Studio Tools for Office (VSTO) Second Edition was released as well.
VSTO Second Edition opens up Office 2007 to developers as well as teach the Office 2003 a few new tricks by adding new project templates.
Download VSTO 2005 SE here:
Download Office 2007 Beta 2 Technical Refresh here:
[found via Eric Carter]