I am most likely wrong here, but there is a picture on
Unconfirmed report says Malaysia Airlines Flight MH370 black box has been found | News.com.au posted 20 minutes ago showing the BlueFin-21 being lowered from the Ocean Shield at sea (I am guessing its Ocean Shield as its a red ship).
its interesting and maybe it has been deployed, but then again the photo may only mean there getting it ready.
@bobstay, its not moving and hasn't for a while and they said it would be used to listen at one of the PC