I tHought it was restricted only non-apple devices. That was new for me.
Yes the Dension unit is in pairing mode. it is detected by iPhone 3GS, iPhone 4, and several iPhone 4Ss too, except by mine.
I still pair it with my nokia bluetooth headseat and my windows 7 pc, with no problems at all.
Well, aparently, after updating iOS 6.0.1 to 6.1, my iPhone 4S finaly recognizes the device in question, but still not able to pair each other, saying the device is off or out of range, witch it's not true as I was in my car with both radio and device switched on.
At least, has finaly detected it properly.