While it is the first to honour the Thunderbolt, more powerful than the USB 3.0 connectivity, Apple would consider finally integrate USB 3.0 in its future products.
A source of our colleagues from VR-Zone indeed stated them that Apple is provides information about the USB 3.0 controllers, returning at approximately 2/3 $ unity against 10/15 $ for the Thunderbolt.
The lack of USB 3.0 on the latest MacBook Air and Pro of the mark has been criticized and share its low cost, Apple could reconsider its decision and integrate a connector USB 3.0 in its future products without waiting for the launch of the new Ivy Bridge of Intel which will intervene in the second quarter of 2012.