The trade organization behind the USB 3.0 specification has announced a new upgraded spec that promises higher data speeds over backwards compatible connections



From MacRumors:

The new spec enhanced SuperSpeed USB 3.0 spec should deliver a 10 Gbps data rate -- the same as current Thunderbolt connectors -- though don't expect it any time soon. The new protocol should be finalized sometime in 2013, with initial products featuring the connector appearing in late-2014 or 2015, reports CNET. To take advantage of the double-speed USB 3.0 interface, devices such as computers, hubs, and digital cameras will need new USB controller hardware.

  SuperSpeed USB 3.0 Promises 10Gbps Data Transfers, Coming in 2014