You don't need an Apple iPhone or an iPod to listen to podcasts on your smartphone or PDA. However, given that this story is on the Apple website, let's see how medical students at Ohio State University are listening to medical lectures as podcasts.
Justin Harper, a medical student at Ohio State University, championed the concept of using an iPod touch as an educational tool for medical students. Now, the first two years of the Ohio State medical school’s lectures are now available on iTunes U. Medical students can now access these lectures while they're at the gym, walking outside, or while they're driving.
Read the full case report here on the Apple website.