Since "asians" of any kind are such a small part of the population it would have been quite easy for a skewing to have taken place simply because of the choice of the polling places (I gather there were only 20 or so).
So, take one polling place in Honolulu in Senator Inoue's neighborhood ~ that'd give you 100% "asian" responses.
Or, there's a town in New Jersey which will yield up mostly Pakistani immigrants ~ 100% for Obama.
This particular poll result repesents only exit polling that was looking to find out early who was winning ~ not particularly who was voting for who.
I agree, and suggest that the geographical term “Asian” needs to be dropped from use in issues such as this, because doing so is like including all countries in N., C. and S. America in the label “American”.