Why doesn't Plantronics make a wired headset for mobile phones (like the iPhone)? They make headsets with 2.5mm jacks that work great for home phones and the office, but seem to lack in the 3.5mm market. From what I've read, the adapters don't work too well.
All mobile phones seem to ship with headsets with a microphone attached to the cord. These don't seem to pickup my voice that well, and I wind up having to hold the microphone close to me. How is that "hands free?" There is the Bluetooth option, but that has numerous issues: battery life and static the most common, and the booms are usually so small that they do not pickup my voice.