As I am getting rates emailed in from lenders, I am seeing the .125-.375% improvement in cost as predicted.  One of our best lenders is actually 0.5% better day over day.  This is huge and is the reason for the following rate quote today:

30 year fixed is available today 5.75% with APR under 6.0%*

*Not everyone will qualify with certain lenders.  This is a representation of "best-case" scenario.  Make sure you are getting the straight talk from your lender.