Im so glad I downloaded this for my 13 hour layover. I was really impressed with the quality of this app. Clearly, these people spent a lot of time developing and perfecting it. I did need to drive by the starting point twice before the tour was triggered to begin, but thats no big deal. I liked that he knew the ins and outs of the island, and recommended Lanikai Beach and also other useful tips.
CharlieChill about Oahu GyPSy Guide Driving Tour