I discovered, by accident, an interesting feature on my iPod Video… If you are listening to something and then remove the headphones, the iPod will automatically pause the playback of what you are listening to. According to Wikipedia, this feature exists in Fourth and fifth generation iPods, second generation iPod Minis, iPod Nanos and iPod Shuffles. This is a very handy feature — if you need to change headphones, drop the player, headphones get pulled accidentally, whatever, you don’t have to miss anything. Especially nice for audiobooks.