So how good is the battery management? Last time I tried one of these things, with the GPS and the map and the iPod going, the battery crapped out before I got half-way home. It was a couple of phone generations ago though.
I have the 3GS and use the pro version (paid for it > ). And trained for a marathon with it. Just make sure u r at 100% charged. I also listen to the iPod while running. It lasted for most of my longer runs of about 3 hrs.