I picked a jawbone bluetooth headset at cingular today. They are truely amazing. Of course I assumed the demo movies were complete BS, but I tested it today with my girlfriend. I walked inside our blast freezer at work in our labortory. The freezer lets off an ear numbing roar. But as soon as I activated that background sound supression, she could hear me fine. I was amazed. Anyone else inlove with this thing?