Yes You heard it right 25GB of data in just 70.seconds .The USB 3.0 specification guarantees an increased performance of 10 times compared to the capabilities of the current USB 2.0, providing a bandwidth of 600 MB/s second. Devices employing USB 3.0 specifications are planned to be available to consumers in 2009 or 2010 and would be backwards compatible with USB 2.0 and USB 1.1.

Microsoft is currently in the planning stage of selecting which operating system to incorporate the USB 3.0 specifications into. “The Microsoft USB core team is currently evaluating which operating systems we should support USB 3.0 on. It’s a difficult decision and a difficult choice because there are all these moving parts,” said Giusti. “Our early indications tell us that most partners think that we should support USB 3.0 on at least Windows Vista.”
According to early information supplied by Microsoft the improvement in transferring large files using USB 3.0 based hardware will be considerable.

Performance comparison: Transfer of 25GB HD movie:
USB 1.1: 9.3 hours
USB 2.0: 13.9 minutes
USB 3.0: 70 seconds