And you thought the Bluetooth headset was gone forever. Samsung Mobile's keeping the dream alive here at CTIA by introducing the "convertible-style" Modus -- a noise cancelling BT headset that's able to convert for Bluetooth stereo connectivity on a whim. It's also equipped with a pair of microphones and multipoint technology, the latter of which enables users to have the device synced to two handsets and respond to whichever rings first. Samsung's also tossing a stereo earbud headset in the box for those times when monaural just ain't cuttin' it,