HONOLULU - Without passenger boats, bridges or tunnels linking the islands of Hawaii, the state's four island counties in some ways are as isolated from each other as they are from the mainland. That may change when the Hawaii Superferry, a four-story catamaran, begins running from Honolulu, on the island of Oahu, to Maui and Kauai in a little over a year. A second boat connecting Honolulu with the Big Island is expected to start service in 2009. "This is like the coming of the jet age. It's a new transportation mode," said John Garibaldi, president of Hawaii Superferry. "How...