THE PORTAL OF NEWS RELEATED TO NOKIA
BT Certification by Bluetooth SIG for something from Nokia called an Alpha Engine subcontroller system.
This states that it has BT4.0, a very optimised low energy bluetooth which will become very useful for small devices that need to transfer information over BT (e.g. small health/fitness sensors).
Forum is promising that N9 has BT4.0 but lack of software development eat this effort which could give Nokia lots of gain for atracting customers as in the market it is becoming tough for nokia to retain its lost position and low budget segmant needs multitasking smooth phones .
N9 has the hardware of BT4.0 since the bigening but not the software so just it runs on bluetooth 2.1. Sadly its ture and is important for servival of windows phone. So, it will never be able to run at that level.