Can see the strobe!
Article overviewing status and events:http://www.nasaspaceflight.com/2012/05/spacexs-dragon-historic-attempt-berth-with-iss/
Crew says they can see the yaw maneuver in progress at 350m.
That was a really great interview with Cady. Joel's the best, IMO. If you missed it, try to catch it later on one of the recorded sources. Interview started at 4:52am ET and lasted about 20 minutes.