2 Way iPod

By accident, I found that you can listen to your iPod using both the headphone jack and the dock connector. Many (most?) functionality that uses the dock port takes over the iPod. A Bluetooth dongle is one accessory that doesn't. I found I can listen to my Bluetooth headphones and it doesn't stop the output to the headphone jack.

You may not care in the slightest, but I do see some applications for this 2 way action. You can jack in to your friends iPod without disturbing them too much. This would be good for side by side machines at the gym, or road trips (think back of the van and front), or even listening to your cubicle neighbor's iPod, just for something different. The wireless aspect allows much more freedom than a traditional headphone splitter.

You can also use this method to hear the latency of the A2DP connection. It isn't much, and perfectly acceptable for most listening applications, but you can clearly hear why you won't be using Bluetooth headphones for DJing any time soon.