Unfortunately it's more complicated to offload the truck in Honolulu if the final destination is Hilo. I guess they just need to come over to Big Island! ;)
I've also emailed Slate a few times about getting delivery in Hawaii and tried to stress how it's such a perfect market. I'm pretty sure I could take a Slate to the Pahoa farmer's market and sell 10 of them on the spot.
One of the issues is probably the lack of RepairPal stations, which would...