Works as expectedJuly 20, 2008 I bought this product for my Sprint Mogul and it works mostly as expected. The good: It plugs right in. You can use any headphone you want - I use Koss PortaPros and JVC HC80s (noise-canceling). You can answer calls by pressing the button on the adapter. I can har fine and people can hear me fine. Nice long cable. Music sounds fine and stops and starts for phone calls. I can hear all of the system sounds. There is a charging port on the side.
The bad (and these are all very minor): It partially blocks the stylus slot. After a call, music sometimes plays in mono. Sometime, pressing the hook button on the adapter causes the phone to go over to Call Waiting. It would have been outstanding if the mic had been noice canceling but for $13, still very much worth it.