One reason I like the headphone jack on the bottom is while I am talking outside here in hot and humid as hell Florida, I sweat a little bit. And a couple of times I swore some drops fell onto the headphone jack hole and I was gonna be warranty-screwed. Same thing when some rain hits suddenly.
And for me, ya, I pocket my phone while listening with headphones so now it will go into my pocket head first since the iPod app doesn't rotate.
And for me, ya, I pocket my phone while listening with headphones so now it will go into my pocket head first since the iPod app doesn't rotate.