You must all have heard rumours of USB3.0 of being released etc etc. Read on to know the truth .
Actually , USB 3.0 was demonstrated by Pal Gelsinger at the Intel Developer Forum on 18 September 2007 . The USB 3.0 Promoter Group announced on November 17, 2008, that version 1.0 of the specification has been completed and is transitioned to the USB Implementers Forum (USB-IF), the managing body of USB specifications. This move effectively opens the spec to hardware developers for implementation in future products.
There are many new features like maximum transfer rate of % GiB/s ( its not GB , refer to my post of Kib ) , new power management features like idle sleep ,suspend states .
On the right you can see the symbol . Notice the ‘SS’ written .
A new major feature is SuperSpeed bus, which increases the maximum transfer rate to 5.0 Gbit/s.
USB 3.0 receptacles are compatible with USB 2.0 device plugs for the respective physical form factors. However, only USB 3.0 Standard-B receptacles can accept USB 3.0 Standard-B device plugs.
The protocol uses Dual-simplex, over four additional wires, differential signaling separate from USB 2.0 signaling (thus six wires total) to achieve the full Superspeed 5.0 Gbit/s .
Now the main question :
As of there are no USB 3.0 device not even the drivers or the hardware for it . But dont be disheartened , USB 3.0 devices will be available in mid 2009 and the consumer products will be available in 2010 . Meanwhile , Windows and Linux are working for the drivers .
So , till 2010 , its USB 2.0 only until and unless a miracle happens .