I think theres a difference between technology that enables you to run faster/further - eg lighter kit, better shoes, and technology that removes part of the skill element required to compete. Its always the same analogy for me and I've said it before - GPS use in races is like bolting a traditional classic lakes rock climb. If you cant do the climb without bolts then go away and do something less difficult. By all means come back and do the original climb when you have the skill, experience and abilities.