I'll chime in here...
this is just my opinion, I don't have any statistics to back this up, but from where I sit it looks this way to me:
Google has a VESTED interest in Yahoo NOT going away.
Google is frightened out of their wits of antitrust accusations
The EU just clobbered Intel.
When Clinton was in power his administration tried to break up Microsoft.
and we've got Obamunism to deal with now????
I agree with adailiabarclay's reply above:
Yahoo has some pretty good reasons for people to use it, reasons OTHER than it's search feature.
Flickr is my
SEO secret weapon, Yahoogroups, I get my news from the Yahoo main page, it was on Yahoo that I learned that Steve Irwin died back in 2005... Yahoo's not going to go down the tubes, what they are likely to do is find their niche and compete that way.