Whitey - 9:58 pm on Aug 29, 2010 (gmt 0)
I have noticed more and more structured sentence type titles doing well. eg - Compare the Best Low Rate keywords @ example.com
Relevance and authority - maybe Google is placing stronger emphasis on the context supporting the title found in the relevance of the page which also has some correlation to the authority of that domain.
I also wonder about Google's " bridging dictionary " where phrase A can be found directly as Phrase B . This has been common with mispellings in Meta Titles and on page content for over 18 months now.