I find this to be true! I used to be a devout TV watching type runner. (I mostly run indoors on my treadmill.) Then, after moving back into town, I decided outdoor running should be my thing. Ha, well I'm still indoors, but am working on getting out on the pavement soon. I bought myself a nice set of earphones and an armband for encouragement. I use it daily while running and have some fantastic Pandora stations on my iPhone to keep me going. (Totally club/hip hop beats to be exact - love my Taio & Flo Rida!!) If my phone were to kick it, I'm not sure my ability to push through the wall would sustain.
All hail the Apple products that keep us going!!