Yes, there are hairdryers but they are very wierd...at least the ones in Hawaii....it's hard to describe, sorry, but I could not use it...DH went to the concierge desk to get me a "normal" one....I would suggest packing your own...HTH and have a wonderful trip!!
We were at the Poly for one night last week (Wow! was it only last week?). We were in Tokelou (sp?) longhouse and there was a hair dryer attached to the wall. It seemed to be more powerful then the standard hotel model.