Yahoo!'s web services launch

Yahoo! is making a bigger push into web services. Via Zawodny (of course), Battelle, Techdirt. The techdirt article refers to a big Yahoo! announcement due tomorrow....what could it be? Blogs, surely/hopefully. With the big focus on RSS and web services, the Zawodny effect, and the (anticlimactic?) launch of MSN Spaces, blogs must be due about now.