<A target="_blank" href="http://blog.youatnotes.de/web/youatnotes/blog2.nsf/dx/youatnotes-xsearch-beta-1-released-to-the-public-feel-free-to-test-.htm">Julian Buss says the beta is public, so if you want to try it you can download</A> a copy to test. He's posted a short video showing how it works and links so you can download the software.