if your going to be around Manila try the Mall of Asia very nice place.
I was there two weeks ago, on the south side outside by the DELL offices there are more then 10 shops for Cell phones, there is also a Nokia Store there, I bought a Nokai E65 in the Nokia store for 23000, it was cheaper on the other stores by 1000 pesos but for the price difference I went with the Nokia Store, this way I know is the real deal,