To my knowledge, there are no BT 2.0 devices on the market right now. The Powerbooks are just that far ahead of the game
But, BT 2.0 is backwards compatible. So if you need something right away, a BT 1.x headset should work fine.
But, BT 2.0 is backwards compatible. So if you need something right away, a BT 1.x headset should work fine.