] With him, as usual, was his indispensable new exercise ] toy: an iPod music player loaded with country and popular ] rock tunes aimed at getting the presidential heart rate ] up to a chest-pounding 170 beats per minute. ] ] Which brings up the inevitable question. What, exactly, ] is on the First iPod? Yes, Fortunate Son is present. NYT | White House Letter: Tunes for the Freewheelin' George Bush |