Microsoft Desktop Search
Microsoft has placed a new utility online, or suite, as they call it. It's a new version, upgrade or enhancement of the current MSN Toolbar. It's still in beta, but according to Scott Hanselman it indexes sourcefiles and xml as well, which is very nice!
In a comment from Moshe Eshel however, you can read that at Trivex they have small hack so that you can add any textfile to the Google search indexer, so you can search in sourcefiles with that tool as well.
Well, it seems the desktop search war has begun and as read in Frans Bouma's post, it's gonna be the next big thing happening. I don't know about that, but he has some thoughts on why WinFS was again delayed, and those are quite interesting.