NASA just exited the planned T-20 hold, and has resumed count toward a 2:01:57 EDT launch of the space shuttle mission STS-125 to the Hubble telescope.
At 1700 UTC, NASA TV shows an ice team examining icing on a LH2 return line. If this becomes too large, it's a no go for launch.
Cape Radio at Cape Canaveral Air Force Station has been heard working Booster Recovery Vessel Freedom Star on 5711 and 10780 kHz USB.