Ill be running the NYC marathon this year. I am a novice so the goal is finishing. I even got myself a nano, a nike+ thingy and the marsware armband/shoepouch to use it with my shoes. Is anyone else running it or has run it in the past? Any tips? Is important to wear tight fitting gear? Taping nipples? What do you do to prevent blisters? did you bring your cell phone? Id like to, to coordinate randezvous with family, but how do you carry it (pocket, pouch, beltclip) Also I have a curiosity about the actual length of the marathon. Its supposed to be 26 miles/42.2Kms. but how is it measured on the course. It clearly makes a lot of difference if you use the inside of the curve or the outside (think the 400m start in a track), and runners, especially the (5+ hours ones) will go anything but in a perfect straight line. Has anyone calculated what is the actual mileage run?