I have been waiting for ages to ask this question, as with being in the states I had to wait until the show aired in the UK. So if anyone knows I would be more than happy to find out.
My question is in the finale Walt and his dad (cannot remember his name) rode off in the boat. If the thing on the island is the cause of the plane crashing how could Walt and his dad follow a heading to safety, as the guy said, if all the gauges would have been fried by the thing in the island? I would have thought that in a case of the plane crashing, that anything with gauges would also be fired. I may just be confused by the whole electromagantic thing, but from what I understood this would happen.