while they may be the *W hotels... the hilton announcement says "opening" vs "coming" in 2009.... maybe the same thing maybe not.
This said, there are lots of *W on bora Bora and no hiltons; so I could see one leaving. (St Regis, Nui, and the LM)
There isn't any way to tell from the pic if the Moorea one is the same. I was at the LM in Bora Bora; so I don't know if the beach pic of the one there is the Nui or not.