If only this thing
plays the CODEC sound when you receive a phone call or text message, but I guess I'll have to settle for changing my phone's sounds to mimic it. Here's the Metal Gear Solid branded Bluetooth headset
going for $60. It comes with a neat little case and features 8 hours of talk time and is due out June 12th. So if you're in the store, you can pick this puppy up along with the game when it's released. Unlike the Halo branded headset for the 360, I can at least use this with my cell phone so it has multiple uses.