I'm not 100% sure, but I think Honda says the initial change isn't due until 60K.
That being said, Honda will say whatever Honda will say. The car will be out of warranty at 60K, and if your transmission craps out at 65K, it's not their problem, it's yours. Toyota even says that their transmission fluid never needs to be changed. But, no fluid lasts forever. Just because their fluid lasts maybe, say, 150K miles, doesn't mean that it shouldn't be changed... perhaps if it is changed regularly, the transmission would last until 250K or 300K miles.
I think a 30K interval should be ok for keeping the fluid clean.