My most recent Apple acquisition is an iPod Shuffle for the gym. I used to use my iPhone on the treadmill/elliptical but given that I tend to sweat a lot, (no matter what season/temperature we have) having it anywhere on me was, plainly, uncomfortable and probably harmful (for the iPhone).
So the shuffle seemed like the best available solution, and I have to say that it proved to be really really convenient. Two things though, I still have no place to clip it on, since I am dripping by the time I get to the cardio part of my workout, and despite the shorter earphone cable (compared to the iPhone) it still flails around acting as an annoying whip.
I think this awesome gadget would be able to help with both of the above issues. The price is pretty good too, considering that it includes free shipping.