My headphones still work with the iPhone OS 3.1. But a problem occurs with I try to stop a song with the headphones.
Usually, double tapping the Play/Pause button (on the left side) stops and rewinds the song (not pauses).
But with 3.1, double tapping said button only pauses the song. And to replay the song, I have to manually go on my iPod Touch, and press the rewind button.
This is the only thing to stop working since the upgrade to 3.1. Although, I never got the previous/next buttons to work with my iTouch.
Orignal From: Kensington Bluetooth Headphones with ...