Plantronics demonstrated a nifty BlueTooth head set called the Voyager Pro UC. It has sensors, and knows when it's on your ear and will route the call to the headset when you put it on. Its mobile presence capability will send a "busy" message to Skype or Microsoft Communicator when it knows you're on a mobile call; it also works with VoIP calls. And when you're listening to a podcast and remove the headset, it will pause the podcast. Voyager Pro UC includes "whisper alerts." This is for when you rudely carry on an in-person conversation with your headset on; but in this case, perhaps you're waiting for an important message, so it whispers an e-mail sender address and subject line into the earpiece for those contacts you directly specify.
Mobile Ends Year With A Whine And A Whimper