Bluetooth 2.x is getting somewhat old in the tooth – it has been around for over two years. Its successor Bluetooth 3.0 has been certified for some time, but has not hit the road so far.
It looks like this will change in the very near future – the Bluetooth SIG has just certified a Samsung phone with a Bluetooth 3.0 radio:

Further information can be had at the URL below:
https://www.bluetooth.org/tpg/QLI_viewQDL.cfm?qid=16289
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Other than Bluetooth 2 being two years-old, what are the benefits of Bluetooth 3? A longer range so the headset can be further away from the phone? Novelty?